2010 United States Senate elections

Last updated

2010 United States Senate elections
Flag of the United States.svg
  2008 November 2, 2010 [lower-alpha 1] 2012  

37 of the 100 seats in the United States Senate
51 seats needed for a majority
 Majority partyMinority party
  Harry Reid official portrait 2009 (3x4b).jpg Sen Mitch McConnell official (3x4a).jpg
Leader Harry Reid Mitch McConnell
Party Democratic Republican
Leader's seat Nevada Kentucky
Seats before5741
Seats after5147
Seat changeDecrease2.svg 6Increase2.svg 6
Popular vote32,405,787 [1] 34,616,463
Percentage45.1%48.2%
Seats up1918
Races won1324

 Third party
 
Party Independent
Seats before2 [lower-alpha 2]
Seats after2 [lower-alpha 3]
Seat changeSteady2.svg
Popular vote155,846
Percentage0.2%
Seats up0
Races won0

2010 United States Senate elections results map.svg
Results of the elections: (excl. Massachusetts)
     Democratic hold
     Republican hold     Republican gain
     No election
Rectangular inset (N.Y.): both seats up for election

Majority Leader before election

Harry Reid
Democratic

Elected Majority Leader

Harry Reid
Democratic

The 2010 United States Senate elections were held on November 2, 2010, from among the United States Senate's 100 seats. A special election was held on January 19, 2010, for a mid-term vacancy in Massachusetts. Thirty-four of the November elections were for six-year terms to the Senate's Class 3, while other three were special elections to finish incomplete terms. Those 37 November elections featured 19 incumbent Democrats (seven of whom retired or were defeated in the primary) and 18 incumbent Republicans (eight of whom retired or were defeated in the primary).

Contents

After the 2008 elections, the Senate was composed of 58 Democrats, 40 Republicans, and 2 independents who caucused with the Democrats. However, in a January 2010 special election, Republicans picked up a seat in Massachusetts thereby reducing Democrats' majority to 57 seats.

Republicans won four seats held by retiring Democrats and also defeated two incumbent Democrats, for a Republican net gain of six seats. This was the first time since 1994 that Republicans successfully defended all of their own seats. This was also the fourth consecutive election of Class 3 senators where Democrats failed to gain seats. Despite the Republican gains, the Democrats retained a majority of the Senate with 51 seats plus the two independents who caucused with them, compared to the 47 Republican seats. As of 2023, this was the last time Republicans won U.S. Senate seats in Illinois and New Hampshire.

Results summary

51247
DemocraticIndependentRepublican

Shading indicates party with largest share of that line. Does not include the January 2010 special election in Massachusetts.

PartiesTotal
Democratic Republican Independent Libertarian Green Constitution Others
Last elections (2008)
Before the November elections
57412 [lower-alpha 3] 100
Not UpTotal38232 [lower-alpha 3] 63
Class 1 (2006→2012)19102 [lower-alpha 3] 31
Class 2 (2008→2014)191332
UpTotal191837
Class 122
Class 211
Class 3161834
Incumbent
retired
Total before6 [lower-alpha 4] 612
Held by same party369
Replaced by other partyDecrease2.svg 3 Democrats replaced by Increase2.svg 3 Republicans3
Result after3912
Incumbent
ran
Total before13 [lower-alpha 5] [lower-alpha 6] 12 [lower-alpha 7] 25
Won election10 [lower-alpha 5] 1020
Lost re-electionDecrease2.svg 2 Democrats replaced by Increase2.svg 2 Republicans2
Lost renomination but won re-election11
Lost renomination but party held11
Lost renomination and party lostDecrease2.svg 1 Democrat replaced by Increase2.svg 1 Republican1
Result after10 [lower-alpha 5] 1525
Total elected13 [lower-alpha 5] 2437
Net gain/lossDecrease2.svg 6Increase2.svg 66
Nationwide voteVotes32,405,78734,616,463155,846 [lower-alpha 8] 776,327552,006178,8603,100,833 [lower-alpha 8] 71,786,122
Share45.14%48.22%0.22%1.08%0.77%0.25%4.32%100%
Result51472 [lower-alpha 3] 100
End of this Congress 56422 [lower-alpha 3] 100

Source: Clerk of the U.S. House of Representatives [1]

Change in composition

After the January special election

D1D2D3D4D5D6D7D8D9D10
D20D19D18D17D16D15D14D13D12D11
D21D22D23D24D25D26D27D28D29D30
D40D39D38D37D36D35D34D33D32D31
D41D42D43D44D45D46D47D48D49D50
Majority →D51
R41
Mass. (sp)
Gain
I2I1D57D56D55D54D53D52
R40R39R38R37R36R35R34R33R32R31
R21R22R23R24R25R26R27R28R29R30
R20R19R18R17R16R15R14R13R12R11
R1R2R3R4R5R6R7R8R9R10

Before the November elections

D1D2D3D4D5D6D7D8D9D10
D20D19D18D17D16D15D14D13D12D11
D21D22D23D24D25D26D27D28D29D30
D40
Calif.
Ran
D39
Ark.
Ran
D38D37D36D35D34D33D32D31
D41
Colo.
Ran
D42
Conn.
Retired
D43
Del. (sp)
Retired
D44
Hawaii
Ran
D45
Ill. (reg)
Ill. (sp)
Retired
D46
Ind.
Retired
D47
Md.
Ran
D48
Nev.
Ran
D49
N.Y. (reg)
Ran
D50
N.Y. (sp)
Ran
Majority →D51
N.D.
Retired
R41
Utah
Ran
I2I1D57
Wis.
Ran
D56
W.Va. (sp)
Retired
D55
Wash.
Ran
D54
Vt.
Ran
D53
Pa.
Ran
D52
Ore.
Ran
R40
S.D.
Ran
R39
S.C.
Ran
R38
Okla.
Ran
R37
Ohio
Retired
R36
N.C.
Ran
R35
N.H.
Retired
R34
Mo.
Retired
R33
La.
Ran
R32
Ky.
Retired
R31
Kan.
Retired
R21R22R23R24
Ala.
Ran
R25
Alaska
Ran
R26
Ariz.
Ran
R27
Fla.
Retired
R28
Ga.
Ran
R29
Idaho
Ran
R30
Iowa
Ran
R20R19R18R17R16R15R14R13R12R11
R1R2R3R4R5R6R7R8R9R10

Result of the November elections

D1D2D3D4D5D6D7D8D9D10
D20D19D18D17D16D15D14D13D12D11
D21D22D23D24D25D26D27D28D29D30
D40
Colo.
Elected [lower-alpha 9]
D39
Calif.
Re-elected
D38D37D36D35D34D33D32D31
D41
Conn.
Hold
D42
Del. (sp)
Hold
D43
Hawaii
Re-elected
D44
Md.
Re-elected
D45
Nev.
Re-elected
D46
N.Y. (reg)
Re-elected
D47
N.Y. (sp)
Elected [lower-alpha 9]
D48
Ore.
Re-elected
D49
Vt.
Re-elected
D50
Wash.
Re-elected
Majority →D51
W.Va. (sp)
Hold
R41
Utah
Hold
R42
Ark.
Gain
R43
Ill. (reg)
Ill. (sp)
Gain [lower-alpha 10]
R44
Ind.
Gain
R45
N.D.
Gain
R46
Pa.
Gain
R47
Wis.
Gain
I2I1
R40
S.D.
Re-elected
R39
S.C.
Re-elected
R38
Okla.
Re-elected
R37
Ohio
Hold
R36
N.C.
Re-elected
R35
N.H.
Hold
R34
Mo.
Hold
R33
La.
Re-elected
R32
Ky.
Hold
R31
Kan.
Hold
R21R22R23R24
Ala.
Re-elected
R25
Alaska
Re-elected
R26
Ariz.
Re-elected
R27
Fla.
Hold
R28
Ga.
Re-elected
R29
Idaho
Re-elected
R30
Iowa
Re-elected
R20R19R18R17R16R15R14R13R12R11
R1R2R3R4R5R6R7R8R9R10
Key:
D# Democratic
I# Independent
R# Republican

Final pre-election predictions

Several sites and individuals publish predictions of competitive seats. These predictions look at factors such as the strength of the incumbent (if the incumbent is running for reelection) and the other candidates, and the state's partisan lean (reflected in part by the state's Cook Partisan Voting Index rating). The predictions assign ratings to each seat, indicating the predicted advantage that a party has in winning that seat.

Most election predictors used:

Where a site gives a percentage probability as its primary indicator of expected outcome, the chart below classifies a race as follows:

ConstituencyIncumbent2010 election ratings
StateSenatorLast
election [lower-alpha 11]
Cook [2] Rothenberg [3] RCP [4] Sabato [5] CQ Politics [6] Result
Alabama Richard Shelby 67.5% RSafe RSafe RSafe RSafe RSafe RShelby
65.2% R
Alaska Lisa Murkowski 48.6% RLikely RSafe RLikely RLikely RLikely RMurkowski
39.5% R [lower-alpha 12]
Arizona John McCain 76.7% RSafe RSafe RSafe RSafe RSafe RMcCain
59.2% R
Arkansas Blanche Lincoln 55.9% DLean R (flip)Likely R (flip)Safe R (flip)Safe R (flip)Lean R (flip) Boozman
57.9% R (flip)
California Barbara Boxer 57.7% DTossupTilt DTossupLean DLean DBoxer
52.2% D
Colorado Michael Bennet Appointed
(2009) [lower-alpha 13]
TossupTossupTossupLean R (flip)TossupBennet
48.1% D
Connecticut Chris Dodd
(retiring)
66.4% DLean DLikely DLean DLean DLean D Blumenthal
55.2% D
Delaware
(special)
Ted Kaufman
(retired)
Appointed
(2009) [lower-alpha 14]
Likely DLikely DLikely DLikely DLikely D Coons
56.6% D
Florida George LeMieux
(retired)
Appointed
(2009) [lower-alpha 15]
Safe RSafe RLikely RSafe RLikely R Rubio
48.9% R
Georgia Johnny Isakson 57.9% RSafe RSafe RSafe RSafe RSafe RIsakson
58.3% R
Hawaii Daniel Inouye 75.5% DSafe DSafe DSafe DSafe DSafe DInouye
74.8% D
Idaho Mike Crapo 99.2% RSafe RSafe RSafe RSafe RSafe RCrapo
71.2% R
Illinois Roland Burris
(retiring)
Appointed
(2009) [lower-alpha 16]
TossupTilt R (flip)TossupLean R (flip)Tossup Kirk
48.0% R (flip)
Indiana Evan Bayh
(retiring)
61.7% DSafe R (flip)Lean R (flip)Likely R (flip)Likely R (flip)Safe R (flip) Coats
54.6% R (flip)
Iowa Chuck Grassley 70.2% RSafe RSafe RSafe RSafe RSafe RGrassley
64.4% R
Kansas Sam Brownback
(retiring)
69.9% RSafe RSafe RSafe RSafe RSafe R Moran
70.1% R
Kentucky Jim Bunning
(retiring)
50.7% RLean RLean RLean RLean RLean R Paul
55.7% R
Louisiana David Vitter 51.0% RLean RLikely RLikely RLikely RLikely RVitter
56.6% R
Massachusetts
(special)
Paul G. Kirk
(retiring)
Appointed
(2009) [lower-alpha 17]
TossupLean R (flip)TossupTossupTossup Brown
51.6% R
(flip)
Maryland Barbara Mikulski 64.8% DSafe DSafe DSafe DSafe DSafe DMikulski
62.2% D
Missouri Kit Bond
(retiring)
56.1% RLean RLean RLikely RLikely RLean R Blunt
54.2% R
Nevada Harry Reid 61.0% DTossupTossupTossupLean R (flip)TossupReid
50.3% D
New Hampshire Judd Gregg
(retiring)
66.2% RLean RSafe RLean RLikely RLean R Ayotte
60.1% R
New York
(regular)
Chuck Schumer 71.2% DSafe DSafe DSafe DSafe DSafe DSchumer
66.3% D
New York
(special)
Kirsten Gillibrand Appointed
(2009) [lower-alpha 18]
Safe DSafe DLikely DSafe DSafe DGillibrand
63.0% D
North Carolina Richard Burr 51.6% RLikely RLikely RLikely RLikely RLikely RBurr
54.8% R
North Dakota Byron Dorgan
(retiring)
68.3% DSafe R (flip)Safe R (flip)Safe R (flip)Safe R (flip)Safe R (flip) Hoeven
76.1% R
(flip)
Ohio George Voinovich
(retiring)
63.9% RSafe RSafe RSafe RLikely RSafe R Portman
56.8% R
Oklahoma Tom Coburn 52.8% RSafe RSafe RSafe RSafe RSafe RCoburn
70.6% R
Oregon Ron Wyden 63.4% DSafe DSafe DLikely DSafe DSafe DWyden
57.2% D
Pennsylvania Arlen Specter
(lost renomination)
52.6% R [lower-alpha 19] TossupTilt R (flip)Lean R (flip)TossupTossup Toomey
51.0% R
(flip)
South Carolina Jim DeMint 53.7% RSafe RSafe RSafe RSafe RSafe RDeMint
61.5% R
South Dakota John Thune 60.6% RSafe RSafe RSafe RSafe RSafe RThune
100.0% R
Utah Bob Bennett
(lost renomination)
68.6% RSafe RSafe RSafe RSafe RSafe R Lee
61.6% R
Vermont Patrick Leahy 70.6% DSafe DSafe DSafe DSafe DSafe DLeahy
64.4% D
Washington Patty Murray 55.0% DTossupTossupTossupLean DTossupMurray
52.1%
West Virginia
(special)
Carte Goodwin
(retiring)
Appointed
(2010) [lower-alpha 20]
TossupTilt DTossupLean DTossup Manchin
53.5%
Wisconsin Russ Feingold 55.3% DLean R (flip)Lean R (flip)Lean R (flip)Lean R (flip)Lean R (flip) Johnson
51.6% R
(flip)

Gains and losses

Senate composition as a result of the 2010 elections. 112th United States Congress Senators.svg
Senate composition as a result of the 2010 elections.
Vote by county (click image for more details) 2010 United States Senate election map by county.svg
Vote by county (click image for more details)

Retirements

Three Democrats and six Republicans retired rather than seek re-election. Three Democrats retired rather than seek election to finish the unexpired term and one Democrat retired rather than seek election to finish the unexpired term and election to a full term.

StateSenatorReplaced by
Connecticut Chris Dodd Richard Blumenthal
Delaware (special) Ted Kaufman Chris Coons
Florida George LeMieux Marco Rubio
Illinois Roland Burris Mark Kirk
Indiana Evan Bayh Dan Coats
Kansas Sam Brownback Jerry Moran
Kentucky Jim Bunning Rand Paul
Massachusetts (special) Paul G. Kirk Scott Brown
Missouri Kit Bond Roy Blunt
New Hampshire Judd Gregg Kelly Ayotte
North Dakota Byron Dorgan John Hoeven
Ohio George Voinovich Rob Portman
West Virginia (special) Carte Goodwin Joe Manchin

Defeats

Three Democrats and one Republican sought re-election but lost in either the primary or general election.

StateSenatorReplaced by
Arkansas Blanche Lincoln John Boozman
Pennsylvania Arlen Specter Pat Toomey
Utah Bob Bennett Mike Lee
Wisconsin Russ Feingold Ron Johnson

Post-election changes

One Republican resigned on May 3, 2011, and was replaced by an appointee.

StateSenatorReplaced by
Nevada
(Class 1)
John Ensign Dean Heller

Race summary

Special elections during the 111th Congress

In these special elections, the winner was seated in the fall of 2010 (excluding Massachusetts), once they qualified and their elections were certified. Sorted by election date, then state, then class.

State
(linked to
summaries below)
IncumbentResultsCandidates
SenatorPartyElectoral history
Massachusetts
(Class 1)
Paul G. Kirk Democratic2009 (Appointed)Interim appointee retired.
New senator elected January 19, 2010.
Republican gain.
Winner seated February 4, 2010.
Delaware
(Class 2)
Ted Kaufman Democratic2009 (Appointed)Interim appointee retired.
New senator elected November 2, 2010.
Democratic hold.
Winner seated November 15, 2010.
Illinois
(Class 3)
Roland Burris Democratic2009 (Appointed)Interim appointee retired.
New senator elected November 2, 2010.
Winner also elected to next term, see below.
Republican gain.
Winner seated November 29, 2010.
New York
(Class 1)
Kirsten Gillibrand Democratic2009 (Appointed)Interim appointee elected November 2, 2010.
West Virginia
(Class 1)
Carte Goodwin Democratic2010 (Appointed)Interim appointee retired.
New senator elected November 2, 2010.
Democratic hold.
Winner seated November 15, 2010.

Elections leading to the next Congress

Source: "Election 2010". The New York Times. Retrieved December 12, 2017.

In these regular elections, the winners were elected for the term beginning January 3, 2011; ordered by state.

All of the elections involved the Class 3 seats.

State
(linked to
summaries below)
IncumbentResultsCandidates
SenatorPartyElectoral history
Alabama Richard Shelby Republican 1986 [lower-alpha 21]
1992
1998
2004
Incumbent re-elected.
Alaska Lisa Murkowski Republican2002 (Appointed)
2004
Incumbent lost renomination, but was re-elected as a write-in candidate.
Arizona John McCain Republican 1986
1992
1998
2004
Incumbent re-elected.
  • Green check.svgY John McCain (Republican) 59.2%
  • Rodney Glassman (Democratic) 34.7%
  • David Nolan (Libertarian) 4.7%
  • Jerry Joslyn (Green) 1.4%
Arkansas Blanche Lincoln Democratic 1998
2004
Incumbent lost re-election.
New senator elected.
Republican gain.
California Barbara Boxer Democratic 1992
1998
2004
Incumbent re-elected.
Colorado Michael Bennet Democratic2009 (Appointed)Interim appointee elected.
  • Green check.svgY Michael Bennet (Democratic) 48.1%
  • Ken Buck (Republican) 46.3%
  • Bob Kinsey (Green) 2.2%
  • Maclyn Stringer (Libertarian) 1.3%
Connecticut Chris Dodd Democratic 1980
1986
1992
1998
2004
Incumbent retired.
New senator elected.
Democratic hold.
Florida George LeMieux Republican2009 (Appointed)Interim appointee retired.
New senator elected.
Republican hold.
Georgia Johnny Isakson Republican 2004 Incumbent re-elected.
Hawaii Daniel Inouye Democratic 1962
1968
1974
1980
1986
1992
1998
2004
Incumbent re-elected.
Idaho Mike Crapo Republican 1998
2004
Incumbent re-elected.
  • Green check.svgY Mike Crapo (Republican) 71.1%
  • Tom Sullivan (Democratic) 25.0%
  • Randy Bergquist (Constitution) 3.9%
Illinois Roland Burris Democratic2009 (Appointed)Interim appointee retired.
New senator elected.
Winner also elected to finish term ending January 3, 2011, see above.
Republican gain.
Winner seated November 29, 2010.
Indiana Evan Bayh Democratic 1998
2004
Incumbent retired.
New senator elected.
Republican gain.
Iowa Chuck Grassley Republican 1980
1986
1992
1998
2004
Incumbent re-elected.
Kansas Sam Brownback Republican 1996 (special)
1998
2004
Incumbent retired to run for Governor of Kansas.
New senator elected.
Republican hold.
  • Green check.svgY Jerry Moran (Republican) 70.3%
  • Lisa Johnston (Democratic) 26.2%
  • Michael Dann (Libertarian) 2.1%
  • Joe Bellis (Reform) 1.4%
Kentucky Jim Bunning Republican 1998
2004
Incumbent retired.
New senator elected.
Republican hold.
Louisiana David Vitter Republican 2004 Incumbent re-elected.
  • Green check.svgY David Vitter (Republican) 56.6%
  • Charlie Melançon (Democratic) 37.7%
  • Randall Hayes (Libertarian) 1.1%
  • Michael Brown (Independent) 0.8%
Maryland Barbara Mikulski Democratic 1986
1992
1998
2004
Incumbent re-elected.
  • Green check.svgY Barbara Mikulski (Democratic) 61.8%
  • Eric Wargotz (Republican) 36.3%
  • Kenniss Henry (Green) 1.1%
  • Richard Shawver (Constitution) 0.8%
Missouri Kit Bond Republican 1986
1992
1998
2004
Incumbent retired.
New senator elected.
Republican hold.
  • Green check.svgY Roy Blunt (Republican) 54.3%
  • Robin Carnahan (Democratic) 40.6%
  • Jonathan Dine (Libertarian) 3.0%
  • Jerry Beck (Constitution) 2.1%
Nevada Harry Reid Democratic 1986
1992
1998
2004
Incumbent re-elected.
New Hampshire Judd Gregg Republican 1992
1998
2004
Incumbent retired.
New senator elected.
Republican hold.
  • Green check.svgY Kelly Ayotte (Republican) 60.2%
  • Paul Hodes (Democratic) 36.7%
  • Chris Booth (Independent) 2.0%
  • Ken Blevens (Libertarian) 1.0%
New York Chuck Schumer Democratic 1998
2004
Incumbent re-elected.
North Carolina Richard Burr Republican 2004 Incumbent re-elected.
North Dakota Byron Dorgan Democratic-NPL 1992
1998
2004
Incumbent retired.
New senator elected.
Republican gain.
Ohio George Voinovich Republican 1998
2004
Incumbent retired.
New senator elected.
Republican hold.
  • Green check.svgY Rob Portman (Republican) 57.3%
  • Lee Fisher (Democratic) 39.0%
  • Eric Deaton (Constitution) 1.7%
  • Michael Pryce (Independent) 1.3%
Oklahoma Tom Coburn Republican 2004 Incumbent re-elected.
  • Green check.svgY Tom Coburn (Republican) 70.5%
  • Jim Rogers (Democratic) 26.1%
  • Stephen Wallace (Independent) 2.5%
  • Ronald Dwyer (Independent) 0.9%
Oregon Ron Wyden Democratic 1996 (special)
1998
2004
Incumbent re-elected.
  • Green check.svgY Ron Wyden (Democratic) 57.2%
  • Jim Huffman (Republican) 39.4%
  • Bruce Cronk (Working Families) 1.3%
  • Marc Delphine (Libertarian) 1.1%
  • Rick Staggenborg (Progressive) 1.0%
Pennsylvania Arlen Specter Democratic 1980 [lower-alpha 22]
1986
1992
1998
2004
Incumbent lost renomination.
New senator elected.
Republican gain.
South Carolina Jim DeMint Republican 2004 Incumbent re-elected.
South Dakota John Thune Republican 2004 Incumbent re-elected.
Utah Bob Bennett Republican 1992
1998
2004
Incumbent lost renomination.
New senator elected.
Republican hold.
  • Green check.svgY Mike Lee (Republican) 61.6%
  • Sam Granato (Democratic) 32.8%
  • Scott Bradley (Constitution) 5.7%
Vermont Patrick Leahy Democratic 1974
1980
1986
1992
1998
2004
Incumbent re-elected.
  • Green check.svgY Patrick Leahy (Democratic) 64.4%
  • Len Britton (Republican) 30.9%
  • Daniel Freilich (Independent) 1.5%
  • Cris Ericson (Independent) 1.1%
  • Stephen Cain (Independent) 1.0%
Washington Patty Murray Democratic 1992
1998
2004
Incumbent re-elected.
Wisconsin Russ Feingold Democratic 1992
1998
2004
Incumbent lost re-election.
New senator elected.
Republican gain.

Closest races

Seven November races, as well as the Massachusetts special election in January, had margins less than 10%:

DistrictWinnerMargin
Illinois Republican (flip)1.6%
Colorado [7] Democratic1.7%
Pennsylvania Republican (flip)2.0%
Alaska Republican4.0% [lower-alpha 23]
Washington Democratic4.7%
Massachusetts Republican (flip)4.8%
Wisconsin Republican (flip)4.8%
Nevada Democratic5.7%

California was the tipping point state, where Barbara Boxer (D) defeated Carly Fiorina (R) by a margin of 10.0%.

Alabama

Alabama election
Flag of Alabama.svg
  2004
2016  
  Richard Shelby, official portrait, 112th Congress (cropped).jpg William G. Barnes (cropped).jpg
Nominee Richard Shelby William G. Barnes
Party Republican Democratic
Popular vote967,861515,049
Percentage65.3%34.7%

2010 United States Senate election in Alabama results map by county.svg
County results
Shelby:      50–60%     60–70%     70–80%     80–90%
Barnes:      50–60%     60–70%     70–80%     80–90%

U.S. senator before election

Richard Shelby
Republican

Elected U.S. Senator

Richard Shelby
Republican

Incumbent Republican Richard Shelby won re-election to a fifth term. On November 9, 1994, Shelby switched his party affiliation from Democratic to Republican, one day after the Republicans won control of both houses in the midterm elections, giving the Republicans a 53–47 majority in the Senate. He won his first full term as a Republican in 1998 by a large margin, and faced no significant opposition in 2004 and 2010.

Republican primary election
PartyCandidateVotes%
Republican Richard Shelby (Incumbent) 405,042 84.4%
Republican Clint Moser75,19015.6%
Total votes479,189 100.0%

Shelby had over $17 million in the bank, one of the highest of any candidate in the country. He had become even more popular in his opposition to the Troubled Asset Relief Program (TARP) and the Emergency Economic Stabilization Act of 2008, as the ranking member of the Senate Banking Committee.

In May, Shelby told reporters "I don't even know who my opponent is." [8]

2010 United States Senate election in Alabama [9]
PartyCandidateVotes%
Republican Richard Shelby (Incumbent) 968,181 65.3%
Democratic William G. Barnes515,61934.7%
Total votes1,482,910 100.0%
Turnout N/A
Republican hold

Alaska

Alaska election
Flag of Alaska.svg
  2004
2016  
  Lisa Murkowski 1 (cropped).jpg Joe Miller at Carlson Center, Fairbanks, Alaska - 201010.jpg Scott McAdams of Alaska.jpg
Candidate Lisa Murkowski Joe Miller Scott McAdams
Party Republican Republican Democratic
Popular vote101,09190,83960,045
Percentage39.5%35.5%23.5%

Alaska Senate Election Results 2010.svg
Borough and census area results
Murkowski:     40–50%     50–60%     60–70%     70–80%
Miller:     30–40%     40–50%     50–60%
McAdams:     30–40%     40–50%

U.S. senator before election

Lisa Murkowski
Republican

Elected U.S. Senator

Lisa Murkowski
Republican

The November general election in Alaska was preceded by primary elections which were held August 24, 2010. Scott McAdams, the Mayor of Sitka, became the Democratic nominee and Joe Miller, an attorney and former federal magistrate, became the Republican nominee after defeating incumbent Senator Lisa Murkowski [10] in the Republican primary. [11]

Murkowski garnered more than 100,000 write-in votes in the general election, many[ clarification needed ] of which were challenged by Miller for various errors including minor misspellings. The appeal was denied [12] Even if all the challenged votes were thrown out, Murkowski would have still had a lead of over 2,100 votes. [13]

Alaska Democratic primary election [14] [15]
PartyCandidateVotes%
Democratic Scott McAdams 18,035 49.99%
Democratic Jacob Seth Kern6,91319.16%
Libertarian David Haase 5,793 16.06%
Democratic Frank Vondersaar5,33914.80%
Total votes36,080 100.00%
Turnout 32%
Republican primary election [14] [15]
PartyCandidateVotes%
Republican Joe Miller 55,878 50.91%
Republican Lisa Murkowski (Incumbent)53,87249.09%
Total votes109,750 100.00%
Turnout 32%
Alaska general election [16] [17] [18]
PartyCandidateVotes%
Write-In Lisa Murkowski (Incumbent) 101,091 39.49%
Republican Joe Miller90,83935.49%
Democratic Scott McAdams60,04523.46%
Libertarian David Haase1,4590.57%
Independent Timothy Carter9270.36%
Independent Ted Gianoutsos4580.18%
Write-In Other write-in votes1,1430.44%
Invalid or blank votes2,7841.08%
Total votes258,746 100.00%
Turnout 52.3%

Arizona

Arizona election
Flag of Arizona.svg
  2004
2016  
  John McCain official portrait 2009.jpg Rodney Glassman.jpg
Nominee John McCain Rodney Glassman
Party Republican Democratic
Popular vote1,005,615592,011
Percentage58.7%34.5%

2010 United States Senate election in Arizona results map by county.svg
McCain:     40–50%     50–60%     60–70%
Glassman:     50–60%

U.S. senator before election

John McCain
Republican

Elected U.S. Senator

John McCain
Republican

Incumbent Republican John McCain, who returned to the Senate after losing the presidency to Barack Obama in the 2008 presidential election, ran for re-election to a fifth term and won. [19]

Democratic primary election [20]
PartyCandidateVotes%
Democratic Rodney Glassman 86,881 34.7%
Democratic Cathy Eden66,42126.5%
Democratic John Dougherty60,26224.1%
Democratic Randy Parraz36,63714.6%
Total votes250,201 100.0%
Republican primary election [20]
PartyCandidateVotes%
Republican John McCain (Incumbent) 284,374 56.2%
Republican J.D. Hayworth162,50232.1%
Republican Jim Deakin59,44711.7%
Total votes506,323 100.0%

After spending over $20 million during the primaries, McCain still had more than $1million cash on hand after the primary election. Glassman criticized McCain on women's issues. [21] In August 2010, Glassman released a TV advertisement called "Arizona First." [22]

2010 United States Senate election in Arizona [23]
PartyCandidateVotes%±%
Republican John McCain (Incumbent) 1,005,615 59.07% -17.67%
Democratic Rodney Glassman592,01134.78%+14.16%
Libertarian David Nolan 80,0974.71%+2.06%
Green Jerry Joslyn24,6031.45%N/A
Majority413,60424.30%
Total votes1,702,326 100.00%
Republican hold Swing

Arkansas

Arkansas election
Flag of Arkansas (1924-2011).svg
  2004
2016  
  John Boozman, official portrait, 112th Congress.jpg Blanche Lincoln, 2007.jpg
Nominee John Boozman Blanche Lincoln
Party Republican Democratic
Popular vote451,617288,156
Percentage57.90%36.95%

2010 United States Senate election in Arkansas results map by county.svg
Boozman:     40–50%     50–60%     60–70%     70–80%
Lincoln:     40–50%     50–60%     60–70%

U.S. senator before election

Blanche Lincoln
Democratic

Elected U.S. Senator

John Boozman
Republican

Incumbent Democrat Blanche Lincoln ran for re-election to a third term, but lost to Republican nominee John Boozman. Boozman became the first Republican in 138 years to win the seat. Arkansas had previously only elected one Republican senator since the Reconstruction, who was defeated after his first term in 2002 by Mark Pryor.

Democratic primary election [24]
PartyCandidateVotes%
Democratic Blanche Lincoln (Incumbent) 146,579 44.5%
Democratic Bill Halter 140,081 42.5%
Democratic D.C. Morrison42,69513.0%
Total votes329,355 100.0%
Democratic primary election runoff [25]
PartyCandidateVotes%
Democratic Blanche Lincoln (Incumbent) 134,758 52.0%
Democratic Bill Halter124,40548.0%
Total votes259,163 100.0%

The Republican primary was held May 18, 2010, with early voting from May 3–17.

Republican primary election [26]
PartyCandidateVotes%
Republican John Boozman 75,010 52.7%
Republican Jim Holt24,82617.5%
Republican Gilbert Baker16,54011.6%
Republican Conrad Reynolds7,1285.0%
Republican Curtis Coleman6,9284.9%
Republican Kim Hendren5,5513.9%
Republican Randy Alexander4,3893.1%
Republican Fred Ramey1,8881.3%
Total votes142,260 100.0%
2010 United States Senate election in Arkansas [27]
PartyCandidateVotes%±%
Republican John Boozman 451,617 57.90% +13.83%
Democratic Blanche Lincoln (Incumbent)288,15636.95%-18.95%
Libertarian Trevor Drown25,2343.24%+3.24%
Green John Gray14,4301.85%+1.85%
Majority163,46120.95%
Total votes779,437 100.00%
Turnout
Republican gain from Democratic Swing

California

California election
Flag of California.svg
  2004
2016  
  Barbara Boxer, Official Portrait, 112th Congress.jpg Carly Fiorina in Sao Paulo, Brazil - 2004.jpg
Nominee Barbara Boxer Carly Fiorina
Party Democratic Republican
Popular vote5,218,4414,217,366
Percentage52.2%42.2%

2010 United States Senate election in California results map by county.svg
County results
Boxer:     40–50%     50–60%     60–70%     70–80%     80–90%
Fiorina:     40–50%     50–60%     60–70%     70–80%

U.S. senator before election

Barbara Boxer
Democratic

Elected U.S. Senator

Barbara Boxer
Democratic

Incumbent Democrat Barbara Boxer won re-election to a fourth term.

In 2009, Boxer was criticized for correcting a general who called her "ma'am". Brigadier General Michael Walsh was testifying on the Louisiana coastal restoration process in the wake of Hurricane Katrina and answered Boxer's query with "ma'am" when Boxer interrupted him. "Do me a favor," Boxer said. "can you say 'senator' instead of 'ma'am?'" "Yes, ma'am," Walsh interjected. "It's just a thing, I worked so hard to get that title, so I'd appreciate it. Thank you," she said. The Army's guide to protocol instructs service members to call members of the U.S. Senate "sir", "ma'am" or "senator". [28] [29] Fiorina used this incident prominently in campaign ads, as did David Zucker, who directed a humorous commercial for RightChange.com titled 'Call Me Senator.' In February 2010, Carly Fiorina put out a campaign ad attacking Republican rival Tom Campbell featuring a "demon sheep", creating international, mostly negative, publicity. [30]

California Democratic Senate primary, 2010
CandidateVotes %
Barbara Boxer (Incumbent)1,957,92081.0%
Brian Quintana338,44213.9%
Mickey Kaus123,5735.1%
Total votes2,419,935 100.0%
California Republican Senate primary, 2010
CandidateVotes %
Carly Fiorina1,315,42956.4%
Tom Campbell504,28921.7%
Chuck DeVore452,57719.3%
Al Ramirez42,1491.8%
Tim Kalemkarian19,5980.8%
Total votes2,334,042 100.0%
California general election
PartyCandidateVotes%
Democratic Barbara Boxer (Incumbent) 5,218,441 52.2%
Republican Carly Fiorina4,217,36642.2%
Libertarian Gail Lightfoot175,2421.8%
Peace and Freedom Marsha Feinland135,0931.4%
Green Duane Roberts128,5101.2%
American Independent Edward Noonan125,4411.2%
Write-ins67<0.1%
Total votes10,000,160 100.0%

Colorado

Colorado election
Flag of Colorado.svg
  2004
2016  
  MichaelBennetofficialphoto.jpg Ken Buck official congressional photo (cropped 2).jpg
Nominee Michael Bennet Ken Buck
Party Democratic Republican
Popular vote851,590822,731
Percentage48.1%46.4%

2010 United States Senate election in Colorado results map by county.svg
County results
Bennet:     40–50%     50–60%     60–70%     70–80%
Buck:     40–50%     50–60%     60–70%     70–80%

U.S. senator before election

Michael Bennet
Democratic

Elected U.S. Senator

Michael Bennet
Democratic

In December 2008, President-elect Barack Obama selected incumbent U.S. Senator Ken Salazar to become U.S. Secretary of the Interior. [31] After Salazar resigned from his seat, [32] Democratic Governor Bill Ritter appointed Denver Public Schools Superintendent Michael Bennet to fill the seat, who won re-election to his first full term. [33] [34]

Colorado Democratic primary election [35]
PartyCandidateVotes%
Democratic Michael Bennet (Incumbent) 183,225 54.2%
Democratic Andrew Romanoff154,96145.8%
Total votes338,186 100.00%
Colorado Republican primary election [35]
PartyCandidateVotes%
Republican Ken Buck 209,638 51.6%
Republican Jane Norton196,95448.4%
Total votes406,592 100.0%

This was one of the most expensive elections in the 2010 cycle, with more than $50 million spent total, including over $35 million in outside spending. [36] Conservative third party groups hammered Bennet for voting 92% of the time with the Democratic leadership, including voting for healthcare reform and the stimulus package. [37] Liberal third party groups called Buck extremist. Bennet focused on attacking Buck's views on abortion, which he believed should be banned including those of cases of rape and incest. He was also attacked for wanting to eliminate the 17th Amendment [38] and refusing to prosecute an alleged rapist as Weld County district attorney. Planned Parenthood mounted a mail campaign, targeting women voters with the warning that "Colorado women can't trust Ken Buck." Bennet won the women vote by 17 points according to exit polls. After the election, Buck conceded to the Denver Post that the main reason why he lost is because of social issues. [39]

2010 United States Senate election in Colorado [7] [40] [41]
PartyCandidateVotes%
Democratic Michael Bennet (Incumbent) 851,590 48.1%
Republican Ken Buck822,73146.4%
Green Bob Kinsey38,7682.2%
Libertarian Maclyn Stringer22,5891.3%
Independent Jason Napolitano19,4151.1%
Independent Charley Miller11,3300.6%
Independent J. Moromisato5,7670.3%
Total votes1,772,190 100.0%
Turnout {{{votes}}}N/A

Connecticut

Connecticut election
Flag of Connecticut.svg
  2004
2016  
Turnout45.9% (voting eligible)
  Richard Blumenthal portrait.jpg Linda McMahon Creative Commons Attribution-Share Alike 2.0 Generic.jpg
Nominee Richard Blumenthal Linda McMahon
Party Democratic Republican
Popular vote636,040498,341
Percentage55.2%43.2%

2010 United States Senate election in Connecticut results map by county.svg
2010 United States Senate election in Connecticut results map by municipality.svg
Blumenthal:      40–50%     50–60%     60–70%     70–80%     80–90%
McMahon:      40–50%     50–60%     60–70%

U.S. senator before election

Chris Dodd
Democratic

Elected U.S. Senator

Richard Blumenthal
Democratic

Incumbent Democrat Christopher Dodd suffered from dropping approval ratings in the past few years due to major controversies, leading him to announce in January 2010 that he would retire, instead of seeking a sixth term. [42] As Dodd was a Democrat, Richard Blumenthal, incumbent State Attorney General, announced on the same day that he would run for Dodd's seat. [43] The Connecticut Democratic Party nominated Blumenthal on May 21. Businesswoman Linda McMahon won the state party's nominating convention and the August 10 Republican primary to become the Republican candidate. [44]

Republican primary election [45]
PartyCandidateVotes%
Republican Linda McMahon 60,479 49.44%
Republican Rob Simmons34,01127.80%
Republican Peter Schiff27,83122.75%
Total votes122,321 100.00%
2010 United States Senate election in Connecticut [46] [47]
PartyCandidateVotes%±%
Democratic Richard Blumenthal 636,040 55.16% -11.20%
Republican Linda E. McMahon498,34143.22%+11.08%
Independent Warren B. Mosler11,2750.98%N/A
Independent Dr. John Mertens6,7350.58%N/A
Write-In Write-in candidates (8)7240.06%N/A
Majority137,75511.95%
Total votes1,153,115 100.00%
Democratic hold

Note: Blumenthal also appeared on the line of the Connecticut Working Families Party and received 30,836 votes on it. His Working Families and Democratic votes have been aggregated together on this table.

Delaware (special)

Delaware special election
Flag of Delaware.svg
  2008
2014  
  Chris Coons, official portrait, 112th Congress (cropped).jpg Christine O'Donnell by Gage Skidmore.jpg
Nominee Chris Coons Christine O'Donnell
Party Democratic Republican
Popular vote174,012123,053
Percentage56.6%40.0%

2010 United States Senate special election in Delaware results map by county.svg
County results

Coons:     60–70%

O'Donnell:     50–60%

U.S. senator before election

Ted Kaufman
Democratic

Elected U.S. Senator

Chris Coons
Democratic

This was a special election to fill Delaware's Class 2 Senate seat, then held by Ted Kaufman, an appointee. The seat had been previously held by long-time Senator Joe Biden, who vacated it when he became Vice President of the United States in 2009.

Delaware Republican primary election
PartyCandidateVotes%
Republican Christine O'Donnell 30,561 53.1%
Republican Michael N. Castle27,02146.9%
Total votes57,582 100.0%
2010 United States Senate special election in Delaware [48]
PartyCandidateVotes%±%
Democratic Chris Coons 174,012 56.61% -8.07%
Republican Christine O'Donnell 123,05340.03%+4.72%
Independent Glenn Miller8,2012.67%
Libertarian James Rash2,1010.69%
Majority50,95916.58%-12.79%
Total votes307,367 100.00%
Democratic hold Swing

Florida

Florida election
Flag of Florida.svg
  2004
2016  
  Marco Rubio, Official Portrait, 112th Congress.jpg Charlie Crist official portrait crop.jpg Kendrick Meek official portrait (cropped).jpg
Nominee Marco Rubio Charlie Crist Kendrick Meek
Party Republican Independent Democratic
Popular vote2,645,7431,607,5491,092,936
Percentage48.9%29.7%20.2%

2010 United States Senate election in Florida results map by county.svg
Rubio:     30–40%     40–50%     50–60%     60–70%     70–80%
Crist:     30–40%     40–50%
Meek:     40–50%     50–60%     60–70%

U.S. senator before election

George LeMieux
Republican

Elected U.S. Senator

Marco Rubio
Republican

Incumbent Republican Senator Mel Martínez, who was elected in a very close race against Democrat Betty Castor with 49% of the vote in 2004, announced on December 2, 2008, that he would not run for re-election to a second term, [49] then announcing on August 7, 2009, that he would resign prior to the end of his term. [50] The Governor of Florida, Republican Charlie Crist, was required to appoint a successor and he chose his former Chief of Staff, George LeMieux. LeMieux, a placeholder who did not run in the election, replaced Martínez in the Senate on September 10, 2009.

Crist publicly announced he was running for the seat in mid-2009. When he declared his candidacy, he received many Republican endorsements, including the National Republican Senatorial Committee, Martínez, and 2008 Republican presidential nominee John McCain. However, his support of the American Recovery and Reinvestment Act of 2009 hurt his popularity among conservatives, and Tea Party candidate Marco Rubio, the former Speaker of the Florida House of Representatives, surged in the polls. In April 2010, Crist announced he would drop out of the Republican primary and run as an Independent. The National Republican Senatorial Committee withdrew its endorsement of Crist and demanded a refund of its campaign funds that it provided for the Crist campaign. [51] [52] [53] Rubio went on to win the Republican primary against only token opposition.

Polling initially showed Crist neck and neck with Rubio, but by the end of August Rubio opened up a solid and consistent lead. He was supported by Republican and some Independent voters whereas Democratic and other Independents were split between Crist and Meek. Rubio went on to win the election with 49% of the vote to Crist's 30% and Meek's 20%.

Republican primary election [54]
PartyCandidateVotes%
Republican Marco Rubio 1,059,513 84.6%
Republican William Kogut111,5848.9%
Republican William Escoffery81,8736.5%
Total votes1,252,970 100.0%
Democratic primary election [55]
PartyCandidateVotes%
Democratic Kendrick Meek 522,942 57.4%
Democratic Jeff Greene283,37031.1%
Democratic Glenn Burkett59,5756.5%
Democratic Maurice Ferré44,5064.9%
Total votes910,393 100.0%
2010 United States Senate election in Florida [56]
PartyCandidateVotes%±%
Republican Marco Antonio Rubio 2,645,743 48.89% -0.54%
Independent Charles Joseph Crist Jr.1,607,54929.71%+29.71%
Democratic Kendrick Brett Meek1,092,93620.20%-28.12%
Libertarian Alexander Snitker24,8500.46%N/A
Independent Sue Askeland15,3400.28%N/A
Independent Rick Tyler7,3940.14%N/A
Constitution Bernie DeCastro4,7920.09%N/A
Independent Lewis Jerome Armstrong4,4430.08%N/A
Independent Bobbie Bean4,3010.08%N/A
Independent Bruce Riggs3,6470.07%N/A
Write-ins1080.00%
Majority1,038,19419.19%+18.08%
Turnout 5,411,10648.25% [57] -22.67%
Total votes5,411,106 100.00%
Republican hold Swing

Georgia

Georgia election
Flag of Georgia (U.S. state).svg
  2004
2016  
  Johnny Isakson, official portrait, 112th Congress (cropped).jpg Michael Thurmond.jpg
Nominee Johnny Isakson Mike Thurmond
Party Republican Democratic
Popular vote1,489,904996,516
Percentage58.3%39.0%

2010 United States Senate election in Georgia results map by county.svg
Isakson:     40–50%     50–60%     60–70%     70–80%     80–90%
Thurmond:     40–50%     50–60%     60–70%     70–80%

U.S. senator before election

Johnny Isakson
Republican

Elected U.S. Senator

Johnny Isakson
Republican

Incumbent Republican Johnny Isakson won re-election to a second term. [58]

Democratic primary election [59]
PartyCandidateVotes%
Democratic Michael Thurmond 297,226 84.3%
Democratic RJ Hadley55,15915.7%
Total votes352,385 100.0%
Republican primary election [60]
PartyCandidateVotes%
Republican Johnny Isakson 558,298 100.00%
Total votes558,298 100.00%
2010 United States Senate election in Georgia [61]
PartyCandidateVotes%±%
Republican Johnny Isakson (Incumbent)1,489,90458.31%+0.43%
Democratic Michael Thurmond996,51639.00%-0.98%
Libertarian Chuck Donovan68,7502.69%+0.55%
Independent Steve Davis (write-in)520.00%N/A
Independent Raymond Beckworth (write-in)240.00%N/A
Independent Brian Russell Brown (write-in)120.00%N/A
Majority493,38819.31%
Total votes2,555,258 100.00%
Republican hold Swing

Hawaii

Hawaii election
Flag of Hawaii.svg
  2004
  Daniel Inouye, official Senate photo portrait, 2008.jpg Cam Cavasso.jpg
Nominee Daniel Inouye Cam Cavasso
Party Democratic Republican
Popular vote277,22879,939
Percentage74.8%21.6%

1998 United States Senate election in Hawaii results map by county.svg
County results
Inouye:     70–80%

U.S. senator before election

Daniel Inouye
Democratic

Elected U.S. Senator

Daniel Inouye
Democratic

Incumbent Democrat and President pro tempore Daniel Inouye won re-election to his ninth term.

Hawaii last elected a Republican Senator in 1970, and its current delegation to the United States Congress currently consists entirely of Democrats. Democrats have also won Hawaii's electoral votes in every presidential election since Ronald Reagan's landslide election in 1984. The exceptions at the time were then-Governor Linda Lingle (who was serving her second and final term) and then-U.S. Representative Charles Djou, both of whom were Republicans.

Democratic primary election [62]
PartyCandidateVotes%
Democratic Daniel Inouye (Incumbent) 188,400 88.3%
Democratic Andy Woerner25,01611.7%
Total votes213,416 100.0%
Republican primary election [62]
PartyCandidateVotes%
Republican Campbell Cavasso 21,865 66.7%
Republican John Roco7,19021.9%
Republican Eddie Pirkowski3,74411.4%
Total votes32,790 100.0%
2010 United States Senate election in Hawaii [63]
PartyCandidateVotes%±%
Democratic Daniel Inouye (Incumbent) 277,228 74.81% -0.70%
Republican Cam Cavasso79,93921.57%+0.58%
Green Jim Brewer7,7622.09%N/A
Libertarian Lloyd Jeffrey Mallen2,9570.80%-0.47%
Independent Jeff Jarrett2,6970.73%N/A
Majority197,28953.24%
Total votes370,583 100.00%
Democratic hold Swing

Idaho

Idaho election
Flag of Idaho.svg
  2004
2016  
  Mike Crapo Official Photo 110th Congress.jpg Tom Sullivan 2 (cropped).jpg
Nominee Mike Crapo Tom Sullivan
Party Republican Democratic
Popular vote319,953112,057
Percentage71.2%24.9%

2010 United States Senate election in Idaho results map by county.svg
County results
Crapo:     40–50%     50–60%     60–70%     70–80%     80–90%

U.S. senator before election

Mike Crapo
Republican

Elected U.S. Senator

Mike Crapo
Republican

Incumbent Republican Mike Crapo won re-election to a third term.

Idaho Republican primary election [64]
PartyCandidateVotes%
Republican Mike Crapo (Incumbent) 127,332 79.3%
Republican Claude "Skip" Davis33,15020.7%
Total votes160,482 100.0%
Idaho Democratic primary election [64]
PartyCandidateVotes%
Democratic Tom Sullivan 18,340 74.7%
Democratic William Bryk6,22725.3%
Total votes24,567 100.0%

Sullivan, a heavy underdog, criticized Crapo for being in Washington for too long saying "Senator Crapo has been in Congress for 18 years. The country is struggling, and I think it's time to make a change." Crapo emphasized his conservative record in Washington. [65]

2010 United States Senate election in Idaho
PartyCandidateVotes%±%
Republican Michael Crapo (Incumbent) 319,953 71.19% -27.99%
Democratic Tom Sullivan112,05724.93%N/A
Constitution Randy Bergquist17,4293.88%N/A
Majority207,89646.26%
Total votes449,439 100.00%
Republican hold Swing

Illinois

Illinois election
Flag of Illinois.svg
  2004
2016  
  Senator Mark Kirk official portrait crop.jpg Alexi Giannoulias.jpg
Nominee Mark Kirk Alexi Giannoulias
Party Republican Democratic
Special election1,677,729
47.3%
1,641,486
46.3%
Regular election1,778,698
48.0%
1,719,478
46.4%

2010 United States Senate election in Illinois results map by county.svg
2010 United States Senate special election in Illinois results map by county.svg
Kirk:     40–50%     50–60%     60–70%     70–80%
Giannoulias:     40–50%     50–60%     60–70%

U.S. senator before election

Roland Burris
Democratic

Elected U.S. Senator

Mark Kirk
Republican

Incumbent Democrat Roland Burris did not run in 2010. [66] He suffered from poor approval ratings [67] and was investigated by the Sangamon County, Illinois State's Attorney for perjury. [68] Although no criminal charges were filed against him, he faced an investigation by the Senate Ethics Committee. [69]

There were two ballot items for the same seat: a regular election, to fill the Class 3 seat beginning with the 112th United States Congress beginning on January 3, 2011, and a special election, to fill that seat for the final weeks of the 111th Congress, replacing the temporary appointment of Roland Burris to the vacancy created by Barack Obama's election to the presidency. [70]

A federal court ruled that the candidates appearing on the ballot for the replacement election would be the ones of the regular election, [70] [71] and that the special election would appear after the regular election on the ballot. [71]

As of 2023, this was the last Senate election in Illinois won by a Republican.

Democratic primary election (February 2, 2010) [72]
PartyCandidateVotes%
Democratic Alexi Giannoulias 351,120 38.9%
Democratic David Hoffman303,71933.7%
Democratic Cheryle Jackson178,94119.8%
Democratic Robert Marshall51,6065.7%
Democratic Jacob Meister16,2321.8%
Total votes901,618 100.0%
Illinois Republican primary election (February 2, 2010) [73]
PartyCandidateVotes%
Republican Mark Kirk 420,373 56.6%
Republican Patrick Hughes142,92819.3%
Republican Donald Lowery66,3578.9%
Republican Kathleen Thomas54,0387.3%
Republican Andy Martin37,4805.0%
Republican John Arrington21,0902.8%
Republican Patricia Beard2.0003%
Total votes742,268 100.0%
Illinois special election [74]
PartyCandidateVotes%
Republican Mark Kirk 1,677,729 47.3%
Democratic Alexi Giannoulias1,641,48646.3%
Green LeAlan Jones129,5713.7%
Libertarian Michael Labno95,7622.7%
Write-inLowell Martin Seida40.0001%
Total votes3,545,984 100.00%
Illinois regular election [75]
PartyCandidateVotes%±%
Republican Mark Kirk 1,778,698 48.0% +21.0%
Democratic Alexi Giannoulias1,719,47846.4%-25.6%
Green LeAlan Jones117,9143.2%N/A
Libertarian Michael Labno87,2472.4%+1.1%
Write-inLowell Martin Seida40.0001%N/A
Write-ins1,136<0.1%N/A
Majority59,2201.6%-51.4%
Turnout 3,704,473-27.9%
Republican gain from Democratic Swing

Indiana

Indiana election
Flag of Indiana.svg
  2004
2016  
  Dan Coats, official portrait, 112th Congress.jpg Brad Ellsworth, official 110th Congress photo.jpg
Nominee Dan Coats Brad Ellsworth
Party Republican Democratic
Popular vote952,116697,775
Percentage54.6%40.0%

 
NomineeRebecca Sink-Burris
Party Libertarian
Popular vote94,330
Percentage5.4%

2010 United States Senate election in Indiana results map by county.svg
County results
Coats:      40–50%     50–60%.      60–70%     70–80%
Ellsworth:      40–50%     50–60%

U.S. senator before election

Evan Bayh
Democratic

Elected U.S. Senator

Dan Coats [76]
Republican

Incumbent Democrat Evan Bayh decided in February 2010 to retire instead of seeking a third term shortly after former U.S. Senator Dan Coats announced his candidacy for Bayh's contested seat. [77] No Democratic candidate submitted enough signatures by the deadline to run, leading Democratic officials to choose U.S. Congressman Brad Ellsworth to be the nominee. Coats won the election.

Indiana Republican primary election [78]
PartyCandidateVotes%
Republican Dan Coats 217,225 39.5%
Republican Marlin Stutzman160,98129.2%
Republican John Hostettler124,49422.6%
Republican Don Bates, Jr.24,6644.5%
Republican Richard Behney23,0054.2%
Total votes550,369 100.0%

After Coats's win in the Republican primary, Ellsworth began to heavily criticize Coats for his ties to lobbyists. He called for more disclosure of the meetings lawmakers have with lobbyists, banning congressional staff from lobbying for six years after their congressional jobs, requiring Congress members to put all their investments in blind trusts, more disclosure of Senate candidates' personal financial information, and changes to the U.S. Senate filibuster rules. He proposed lowering number of votes required to break a filibuster to 55 from the current 60. [79] In response to Ellsworth's charges, Coats published his lobbying record in an 815-page document.

Coats emphasized the individual issues rather than ethics reforms advocated by his opponent. He focused on Ellsworth's record of voting in support of the Economic Stimulus Act of 2008, cap-and-trade legislation, and health care bill. Coats opinion of the healthcare law was that "the only responsible solution ... is to repeal the Obama-Pelosi-Ellsworth health spending bill and quickly replace it with cost-effective, incremental pieces that will decrease costs, increase coverage and not break the bank."

Indiana election [80]
PartyCandidateVotes%±%
Republican Dan Coats 952,116 54.60% +17.37%
Democratic Brad Ellsworth697,77540.01%-21.64%
Libertarian Rebecca Sink-Burris94,3305.39%+4.27%
Majority254,34114.58%
Total votes1,743,921 100.00%
Republican gain from Democratic Swing

Iowa

Iowa election
Flag of Iowa.svg
  2004
2016  
  Sen Chuck Grassley official.jpg Roxanne Conlin crop.jpg
Nominee Chuck Grassley Roxanne Conlin
Party Republican Democratic
Popular vote718,215371,686
Percentage64.4%33.3%

2010 United States Senate election in Iowa results map by county.svg
County results
Grassley:     50-60%     60-70%     70-80%     80-90%     >90%
Conlin:     50–60%

U.S. senator before election

Chuck Grassley
Republican

Elected U.S. Senator

Chuck Grassley
Republican

Incumbent Republican Chuck Grassley won re-election to a sixth term.

Republican primary election [81]
PartyCandidateVotes%
Republican Chuck Grassley (inc.) 197,194 98.0%
Republican Write-ins3,9262.0%
Total votes201,120 100.0%
Democratic primary election [81]
PartyCandidateVotes%
Democratic Roxanne Conlin 52,715 77.5%
Democratic Bob Krause8,72812.9%
Democratic Tom Fiegen6,3579.4%
Democratic Write-ins1770.2%
Total votes67,977 100.0%

Incumbent Chuck Grassley started the campaign moderately popular, but his approval ratings dropped somewhat during the campaign. [82] However, the seat continued to be considered to be "Safe Republican" by many sources, with CQ Politics noting that Grassley is "one of Iowa's most durable politicians."

Conlin described herself as a "prairie progressive." She supported the recent landmark case of Varnum v. Brien, which legalized gay marriage in the state. She also supported repeal of "don't ask, don't tell." [83]

Before the election, former political advisor John Maxwell claimed that Grassley would have his toughest race since his first U.S. Senate election in 1980, where he defeated incumbent John Culver with 53% of the vote. Grassley won all of his four re-election bids with nearly 70% of the vote against unknown opponents. [84] Grassley won the election with 64.51% of the vote.

2010 United States Senate election in Iowa [85]
PartyCandidateVotes%±%
Republican Chuck Grassley (Incumbent) 718,215 64.35% -5.83%
Democratic Roxanne Conlin 371,68633.30%+5.43%
Libertarian John Heiderscheit25,2902.27%
Write-ins8720.08%
Majority346,52931.05%-11.26%
Turnout 1,116,063
Republican hold Swing

Kansas

Kansas election
Flag of Kansas.svg
  2004
2016  
  Jerry Moran, official Congressional photo portrait.jpg No image.png
Nominee Jerry Moran Lisa Johnston
Party Republican Democratic
Popular vote578,768215,270
Percentage70.3%26.2%

2010 United States Senate election in Kansas results map by county.svg
County results
Moran:     50–60%     60–70%     70–80%     80–90%     >90%
Johnston:     40–50%     50–60%

U.S. senator before election

Sam Brownback
Republican

Elected U.S. Senator

Jerry Moran
Republican

Incumbent Republican Sam Brownback retired to run for Governor of Kansas, instead of seeking a third term. Republican nominee Jerry Moran won the open seat. Kansas is one of the most Republican states in the nation;[ citation needed ] no Democrat has been elected to either Senate seat since 1932.

Democratic primary election [86]
PartyCandidateVotes%
Democratic Lisa Johnston 25,421 31.2%
Democratic Charles Schollenberger19,22823.6%
Democratic David Haley15,58419.2%
Democratic Patrick Wiesner13,35916.4%
Democratic Robert Conroy7,7799.6%
Total votes81,371 100.00%

The retirement of Brownback, a popular U.S. Senator, led to a heavily competitive primary election. Tiahrt, who was on the Committee of Appropriations, had been accused of excessive earmarking while he was in Congress. From 2006 to 2008, Tiahrt had requested and supported a total of 63 solo earmarks, costing $53.9 million. In the same period, Moran had requested and supported a total of 29 earmarks, with a pricetag of $13.4 million. [87] [88]

Republican primary election [86]
PartyCandidateVotes%
Republican Jerry Moran 161,407 49.8%
Republican Todd Tiahrt144,37244.6%
Republican Tom Little10,1043.1%
Republican Bob Londerholm8,1682.5%
Total votes324,051 100.00%

After the primaries, Moran chose not to release any more negative advertisements. Democrat Lisa Johnston ran a low-profile, quiet race. On election day, she won only two counties: Wyandotte County and Douglas County, while Moran won statewide by a landslide. [89]

2010 United States Senate election in Kansas
PartyCandidateVotes%±%
Republican Jerry Moran 578,768 70.34% +1.18%
Democratic Lisa Johnston215,27026.16%-1.33%
Libertarian Michael Dann17,4372.12%+0.18%
Reform Joe Bellis11,3561.38%-0.04%
Majority363,49844.18%
Total votes822,831 100.00%
Republican hold Swing

Kentucky

Kentucky election
Flag of Kentucky.svg
  2004
2016  
  Rand Paul official portrait with flag edit.jpg JackConway (cropped).jpg
Nominee Rand Paul Jack Conway
Party Republican Democratic
Popular vote755,411599,843
Percentage55.7%44.2%

2010 United States Senate election in Kentucky results map by county.svg
County results
Paul:     50–60%     60–70%     70–80%
Conway:     50–60%     60–70%
Tie:     50%

U.S. senator before election

Jim Bunning
Republican

Elected U.S. Senator

Rand Paul
Republican

Incumbent Republican Jim Bunning retired instead of seeking a third term. Republican nominee Rand Paul won the open seat. [90]

On May 18, 2010, Paul won the Republican nomination. [90] After conceding the election to Paul, Grayson said, "It's time to put all differences aside, unite behind Dr. Paul, he needs our help and I for one stand ready to serve". [91]

Republican primary election [92]
PartyCandidateVotes%
Republican Rand Paul 206,986 58.8%
Republican Trey Grayson124,86435.4%
Republican Bill Johnson7,8612.2%
Republican John Stephenson6,8852.0%
Republican Gurley L. Martin2,8500.8%
Republican Jon J. Scribner2,8290.8%
Total votes352,275 100.0%
Democratic primary election [92]
PartyCandidateVotes%
Democratic Jack Conway 229,433 44.0%
Democratic Daniel Mongiardo225,26043.2%
Democratic Darlene Fitzgerald Price28,5315.5%
Democratic James Buckmaster20,5613.9%
Democratic Maurice Sweeney17,8743.4%
Total votes521,659 100.0%

Grayson attacked Paul for his "strange ideas," such as his opposition of the PATRIOT Act, and what Grayson alleged to be his support of closing down Guantanamo Bay and saying that Iran was not a threat. He also attacked Paul for being a Duke University fan.[ relevant? ] He sent out another TV ad and web video that stirred controversy by making the case that Paul believes that foreign policy decisions made prior to September 11, 2001, are partially to blame for the attacks. [93] Paul immediately responded by launching a statewide television ad in which he expresses his "outrage at terrorists who killed 3,000 innocents" before accusing Grayson of a "lie" and a "shameful" tactic. [94] Grayson accused the Fox News Channel of favoring Paul over him.

Conway began the race trailing Paul, but as he attacked his opponent's positions on social-welfare and criminal-justice policies, the polls began to tighten. The campaign attracted $8.5 million in contributions from outside groups, of which $6 million was spent to help Rand Paul and $2.5 million to help Conway. This money influx was in addition to the money spent by the candidates themselves: $6 million by Paul and $4.7 million by Conway. [95] [96]

Kentucky election
PartyCandidateVotes%±%
Republican Rand Paul 755,411 55.69% +5.03%
Democratic Jack Conway599,61744.26%-5.12%
Majority155,59911.48%
Total votes1,354,833 100.00%
Republican hold Swing

Louisiana

Louisiana election
Flag of Louisiana.svg
  2004
2016  
  DVitterOfficial.jpg Charles Melancon (cropped).jpg
Nominee David Vitter Charlie Melancon
Party Republican Democratic
Popular vote715,304476,423
Percentage56.6%37.7%

2010 United States Senate election in Louisiana results map by parish.svg
Parish results

Vitter:     40-50%     50-60%     60–70%     70-80%

Melançon:     40–50%     50–60%     70–80%

U.S. senator before election

David Vitter
Republican

Elected U.S. Senator

David Vitter
Republican

Incumbent Republican David Vitter won re-election to a second term. Some speculated that Vitter's re-election might have become complicated, by the prostitution scandal revealed in 2007, but he continued to lead in aggregate polling against potential opponents. [97]

Louisiana Democratic primary election [98]
PartyCandidateVotes%
Democratic Charlie Melançon 77,702 70.6%
Democratic Neeson Chauvin19,50717.7%
Democratic Cary Deaton12,84211.7%
Total votes110,051 100.0%
Louisiana Republican primary election [98]
PartyCandidateVotes%
Republican David Vitter (Incumbent) 85,179 87.6%
Republican Chet Traylor6,8387.0%
Republican Nick Accardo5,2215.4%
Total votes97,238 100.0%

Melançon heavily criticized Vitter for prostitution sex scandal. [99] [100] Vitter released television advertising criticizing Melancon for his support for Obama's stimulus package and his support for amnesty for illegal immigrants. [101] Melancon claimed "In August, Melancon challenged Vitter to a series of five live, televised town hall-style debates across the state. In his 2004 campaign for Senate, Vitter committed to five live, televised debates. Since Melancon issued the challenge, Vitter and Melancon have been invited to a total of seven live, televised debates. Vitter only accepted invitations to debates hosted by WWL-TV and WDSU-TV, both in New Orleans." [102]

Louisiana election [103]
PartyCandidateVotes%±%
Republican David Vitter (Incumbent) 715,304 56.56% +5.53%
Democratic Charlie Melancon476,42337.67%+8.44%
Libertarian Randall Hayes13,9521.10%N/A
Independent Michael Brown9,9700.79%N/A
Independent Mike Spears9,1880.73%N/A
Independent Ernest Wooton8,1640.65%N/A
Independent Skip Galan7,4710.59%N/A
Reform William McShan5,8790.46%N/A
Independent Bob Lang5,7320.45%N/A
Independent Milton Gordon4,8060.38%N/A
Independent Tommy LaFargue4,0420.32%N/A
Independent Sam Melton3,7790.30%N/A
Majority238,88118.89%
Total votes1,264,710 100.00%
Republican hold Swing

Maryland

Maryland election
Flag of Maryland.svg
  2004
2016  
  Barbara Mikulski official portrait c. 2011.jpg Eric Wargotz.jpg
Nominee Barbara Mikulski Eric Wargotz
Party Democratic Republican
Popular vote1,140,531655,666
Percentage62.2%35.8%

2010 United States Senate election in Maryland results map by county.svg
County results
Mikulski:     40–50%     50–60%     60–70%     70–80%     80–90%
Wargotz:     40–50%     50–60%     60–70%

U.S. senator before election

Barbara Mikulski
Democratic

Elected U.S. Senator

Barbara Mikulski
Democratic

Incumbent Democrat Barbara Mikulski won re-election to a fifth term.

Democratic primary election [104]
PartyCandidateVotes%
Democratic Barbara Mikulski (Incumbent) 388,868 82.32%
Democratic Christopher J. Garner35,5797.53%
Democratic A. Billy Bob Jaworski15,1313.20%
Democratic Blaine Taylor10,7872.28%
Democratic Theresa C. Scaldaferri7,9131.68%
Democratic Sanquetta Taylor7,3651.56%
Democratic Lih Young6,7331.43%
Total votes472,376 100.00%
Republican primary election [104]
PartyCandidateVotes%
Republican Eric Wargotz 92,464 38.57%
Republican Jim Rutledge73,31130.58%
Republican Joseph Alexander14,0265.85%
Republican Neil H. Cohen13,6135.68%
Republican Stephens Dempsey9,3253.89%
Republican Daniel W. McAndrew8,4603.53%
Republican John B. Kimble 8,0813.37%
Republican Samuel R. Graham, Sr.6,6002.75%
Republican Barry Steve Asbury5,9002.46%
Republican Eddie Vendetti5,0462.10%
Republican Gregory Kump2,9311.22%
Total votes239,757 100.00%

Republican nominee Eric Wargotz, Queen Anne's County, Maryland Commission President and physician, compared Mikulski to a dinosaur by calling her a political "insidersaurus" for being in Washington for over thirty years [105] [106] [107] An ad showed a hammer hitting a brick wall, breaking it down and citing criticisms of Mikulski's record as a U.S. Senator. Mikulski released advertisements emphasizing education and job creation. [108] Despite Wargotz's limited campaign and resources he received the highest percentage of votes against Mikulski as an incumbent U.S. Senator

2010 United States Senate election in Maryland [109]
PartyCandidateVotes%±%
Democratic Barbara Mikulski (Incumbent) 1,140,531 62.19% -2.61%
Republican Eric Wargotz655,66635.75%+2.05%
Green Kenniss Henry20,7171.13%+0.06%
Constitution Richard Shawver14,7460.80%+0.42%
Write-ins2,2130.11%+0.05%
Majority484,86526.44%
Total votes1,833,873 100.00%
Democratic hold Swing

Massachusetts (special)

Massachusetts special election
Flag of Massachusetts.svg
  2006 January 19, 2010 2012  
  Sbrownofficial.jpg Martha Coakley crop.jpg
Nominee Scott Brown Martha Coakley
Party Republican Democratic
Popular vote1,168,1781,060,861
Percentage51.9%47.1%

2010 United States Senate election in Massachusetts results map by county.svg
2010 United States Senate Special Election in Massachusetts by Town.svg
Brown:     40–50%     50–60%     60–70%     70–80%
Coakley:     40–50%     50–60%     60–70%     70–80%
Tie:     40–50%

U.S. senator before election

Paul Kirk
Democratic

Elected U.S. senator

Scott Brown
Republican

A special election was held January 19, 2010 to fill the Class 1 seat for the remainder of the term ending January 3, 2013. It was won by Republican Scott Brown.

Incumbent Democrat Ted Kennedy had died August 25, 2009. Governor of Massachusetts appointed Democrat Paul Kirk September 24, 2009 to continue the term pending this special election, in which Kirk was not a candidate.

The election was viewed by conservatives outside of Massachusetts as a referendum against President Barack Obama.[ citation needed ] But Brown stated that he didn't believe that it was a referendum on Obama. [110] Although Democrats would retain control of both Houses of Congress until January 2011, Brown's victory greatly affected their political plans, most notably for the Patient Protection and Affordable Care Act, though the legislation was signed into law two months later. [111] [112] Brown became the first Republican to win this seat since 1946, and as of 2024, this is the last Senate election in Massachusetts won by a Republican.

Massachusetts Democratic primary election [113]
PartyCandidateVotes%
Democratic Martha Coakley 310,227 47%
Democratic Mike Capuano184,79128%
Democratic Alan Khazei88,92913%
Democratic Stephen Pagliuca80,24812%
Total votes664,195 100%
Massachusetts Republican primary election [114]
PartyCandidateVotes%
Republican Scott Brown 145,465 89%
Republican Jack Robinson17,24111%
Total votes162,706 100%
Massachusetts special election
PartyCandidateVotes%
Republican Scott Brown 1,168,178 51.83%
Democratic Martha Coakley1,060,86147.07%
Libertarian Joseph L. Kennedy22,3880.99%
All others1,1550.05%
Blanks1,1450.05%
Total votes2,253,727 100%
Turnout 54%
Republican gain from Democratic

Missouri

Missouri election
Flag of Missouri.svg
  2004
2016  
  Rep Roy Blunt (cropped).jpg SOS Robin Carnahan (cropped).jpg
Nominee Roy Blunt Robin Carnahan
Party Republican Democratic
Popular vote1,054,160789,736
Percentage54.2%40.6%

2010 United States Senate election in Missouri results map by county.svg
County results

Blunt:     40–50%     50–60%     60–70%     70–80%

Carnahan:     50–60%     70–80%

U.S. senator before election

Kit Bond
Republican

Elected U.S. Senator

Roy Blunt
Republican

Incumbent Republican Kit Bond retired instead of seeking a fifth term. Republican nominee Roy Blunt won the open seat. [115]

Republican primary election [116]
PartyCandidateVotes%
Republican Roy Blunt 411,040 70.9%
Republican Chuck Purgason75,66313.1%
Republican Kristi Nichols40,7447.0%
Republican Deborah Solomon15,0992.6%
Republican Hector Maldonado8,7311.5%
Republican Davis Conway8,5251.5%
Republican R.L. Praprotnik8,0471.4%
Republican Tony Laszacs6,3091.1%
Republican Mike Vontz5,1900.9%
Total votes579,348 100.00%
Democratic primary election [116]
PartyCandidateVotes%
Democratic Robin Carnahan 266,349 83.9%
Democratic Richard Charles Tolbert33,73110.6%
Democratic Francis Vangeli17,5115.5%
Total votes317,591 100.00%

Democrat Robin Carnahan and national Democrats heavily criticized Blunt for his support of bailouts, calling him "Bailout Blunt." [117] Blunt criticized her for supporting President Obama's stimulus package, the cap-and-trade energy bill, and the health care reform bill. [118]

2010 United States Senate election in Missouri [119]
PartyCandidateVotes%±%
Republican Roy Blunt 1,054,160 54.23% -1.86%
Democratic Robin Carnahan789,73640.63%-2.17%
Libertarian Jonathan Dine58,6633.02%+2.29%
Constitution Jerry Beck41,3092.13%+1.74%
Majority264,42413.60%
Total votes1,943,868 100.00%
Republican hold Swing

Nevada

Nevada election
Flag of Nevada.svg
  2004
2016  
  Harry Reid official portrait 2009 crop.jpg Sharron Angle (cropped).jpg
Nominee Harry Reid Sharron Angle
Party Democratic Republican
Popular vote362,785321,361
Percentage50.2%44.5%

2010 United States Senate election in Nevada results map by county.svg
County results
Reid:     40–50%     50–60%
Angle:     40–50%     50–60%     60–70%

U.S. senator before election

Harry Reid
Democratic

Elected U.S. Senator

Harry Reid
Democratic

Incumbent Democratic Majority Leader Harry Reid won re-election to a fifth term. [120]

Democratic primary Tuesday, June 8, 2010 [121]
PartyCandidateVotes%
Democratic Harry Reid (Incumbent) 87,401 75.3%
Democratic None of these12,34110.6%
Democratic Alex Miller9,7178.4%
Democratic Eduardo Hamilton4,6454.0%
Democratic Carlo Poliak1,9381.7%
Total votes116,042 100.00%
Republican primary Tuesday, June 8, 2010 [121]
PartyCandidateVotes%
Republican Sharron Angle 70,452 40.1%
Republican Sue Lowden45,89026.1%
Republican Danny Tarkanian40,93623.3%
Republican John Chachas6,9263.9%
Republican Chad Christensen4,8062.7%
Republican None of these3,0911.8%
Republican Bill Parson1,4840.8%
Republican Gary Bernstein6980.4%
Republican Garn Mabey 4620.3%
Republican Cecilia Stern3550.2%
Republican Brian Nadell2350.1%
Republican Terry Suominen2240.1%
Republican Gary Marinch1790.1%
Total votes175,738 100.00%

Reid was initially considered vulnerable, with the non-partisan Cook Political Report rating the election as a toss-up [122] and the Rothenberg Political Report rating the state as toss-up. [123] A June 9, 2010, Rasmussen Reports post-primary poll showed Angle leading incumbent Senator Harry Reid by a margin of 50% to 39%. [124] However, a July 2010 poll showed Senator Reid leading Angle by 7 points, following nationwide attention to some of Angle's positions, [125] as well as the endorsement of Reid by prominent Republicans. The change of margin, 18% in less than a month, is the largest in Senate elections history. [125] On July 28, 2010, Rasmussen Reports moved the race from toss-up to leans Democratic. [126] Later, it moved back to toss-up. Despite Angle leading by three points in the polls the days leading up to the election, Reid defeated her by 5.74%, even in her own county, Washoe County. Reid also secured huge numbers out of the Democratic stronghold of Clark County, which covers the Las Vegas Metropolitan Area. Angle's far right beliefs and positions were also widely cited as a reason for the failure of the Republican Party defeating Reid. [127]

2010 United States Senate election in Nevada [128] [129]
PartyCandidateVotes%±%
Democratic Harry Reid (Incumbent) 362,785 50.29% -10.84%
Republican Sharron Angle321,36144.55%+9.45%
None of These Candidates16,1742.25%+0.65%
Tea PartyScott Ashjian5,8110.81%N/A
Independent Michael L. Haines4,2610.59%N/A
Independent American Party (Nevada) Timothy Fasano3,1850.44%N/A
Independent Jesse Holland3,1750.44%N/A
Independent Jeffery C. Reeves2,5100.35%N/A
Independent Wil Stand2,1190.29%N/A
Majority41,4245.74%
Total votes721,381 100.00% -11.14%
Democratic hold Swing

New Hampshire

New Hampshire election
Flag of New Hampshire.svg
  2004
2016  
  Kelly Ayotte portrait (cropped).jpg Congressman Paul Hodes.JPG
Nominee Kelly Ayotte Paul Hodes
Party Republican Democratic
Popular vote272,703166,538
Percentage60.2%36.7%

2010 United States Senate election in New Hampshire results map by county.svg
2010 United States Senate election in New Hampshire results map by municipality.svg
Ayotte:     40–50%     50–60%     60–70%     70–80%     80–90%     >90%
Hodes:     40–50%     50–60%     60–70%     70–80%     >90%
Tie:     40–50%

U.S. senator before election

Judd Gregg
Republican

Elected U.S. Senator

Kelly Ayotte
Republican

Incumbent Republican Judd Gregg retired instead of seeking a fourth term. Republican nominee Kelly Ayotte won the open seat by over 23 points, after winning a close party primary. New Hampshire trended Democratic in the 2006 and 2008 elections, with Republican incumbents losing both of the state's House seats and its other Senate seat to Democrats, but polling conducted in late December 2008 showed Gregg defeating both of the state's U.S. Representatives in a hypothetical match-up.

Republican primary election [130]
PartyCandidateVotes%
Republican Kelly Ayotte 53,056 38.21%
Republican Ovide Lamontagne51,39737.01%
Republican Bill Binnie19,50814.05%
Republican Jim Bender12,6119.08%
Republican Dennis Lamare1,3881.00%
Republican Tom Alciere4990.36%
Republican Gerard Beloin4020.29%
Total votes138,861 100.00%

Democrat Paul Hodes called himself a fiscal conservative, which was mocked by Republican Kelly Ayotte in a TV ad. Hodes was criticized for supporting President Obama's Economic Recovery package, a carbon energy tax, and Affordable Care Act. [131] [132] [133] Hodes criticized Ayotte for numerous controversies. One ad was questioned Ayotte's honesty in dealing with the Lakes Region Ponzi scheme which defrauded investors of almost $80 million. [134]

New Hampshire election [135]
PartyCandidateVotes%±%
Republican Kelly Ayotte 272,703 60.16% -6.08%
Democratic Paul Hodes166,53836.74%+2.99%
Independent Chris Booth9,2852.05%N/A
Libertarian Ken Blevens4,7541.05%+1.03%
Majority106,16523.42%
Total votes453,280 100.00%
Republican hold Swing

New York

There were two elections, due to the resignation of Hillary Clinton in January 2009 to become the U.S. Secretary of State. Both senate races, along with the New York gubernatorial election, one with a vulnerable Democratic incumbent and the other an open race, respectively, [136] was believed to lead major New York Republicans to gravitate towards them rather than challenge the popular Schumer. [137] [138] As it happened, however, New York Republicans had difficulty drawing top-tier candidates to any of the three races.

New York (regular)

New York regular election
Flag of New York.svg
  2004
2016  
  Chuck Schumer official photo (cropped 2).jpg Jay Townsend.png
Nominee Chuck Schumer Jay Townsend
Party Democratic Republican
Popular vote3,047,7751,480,337
Percentage66.4%33.0%

2010 United States Senate election in New York results map by county.svg
County results
Schumer:     40–50%     50–60%     60–70%     70–80%     80–90%     >90%
Townsend:     40–50%     50–60%

U.S. senator before election

Chuck Schumer
Democratic

Elected U.S. Senator

Chuck Schumer
Democratic

Incumbent Democrat Chuck Schumer won re-election to a third term. [139]

Republican primary election [140]
PartyCandidateVotes%
Republican Jay Townsend 234,440 55.41%
Republican Gary Berntsen188,62844.59%
Total votes423,068 100.00%
New York regular election [141] [142]
PartyCandidateVotes%
Democratic Chuck Schumer (Incumbent) 2,686,043 56.27%
Working Families Chuck Schumer (Incumbent)183,6723.85%
Independence Chuck Schumer (Incumbent)177,3963.72%
Total Chuck Schumer (Incumbent) 3,047,111 63.84%
Republican Jay Townsend1,238,94725.96%
Conservative Jay Townsend240,7775.04%
TotalJay Townsend1,479,72431.00%
Green Colia Clark42,3400.89%
Libertarian Randy Credico24,8630.52%
NoneBlank/Void/Scattering179,3733.76%
Total votes4,773,411 100.0%
Democratic hold

New York (special)

New York special election
Flag of New York.svg
  2006
2012  
  Senator Kirsten Gillibrand.jpg Joseph DioGuardi.jpg
Nominee Kirsten Gillibrand Joseph DioGuardi
Party Democratic Republican
Popular vote2,837,6841,582,693
Percentage59.6%33.3%

2010 United States Senate special election in New York results map by county.svg
County results
Gillibrand:     40–50%     50–60%     60–70%     70–80%     80–90%
DioGuardi:     50–60%

U.S. senator before election

Kirsten Gillibrand
Democratic

Elected U.S. Senator

Kirsten Gillibrand [143]
Democratic

Governor David Paterson had appointed Democrat Kirsten Gillibrand to serve as United States Senator this special election, replacing former Senator Hillary Clinton, who resigned to serve as U.S. Secretary of State in the Barack Obama administration. The winner of the special election would complete the term ending in January 2013. Due to this special election, this was the first time since the ratification of the 17th Amendment in 1913 that all of New York's six statewide offices were up for popular election on the same date.

Gillibrand claimed to be an independent thinker and takes a back seat to no one. She also released television advertising touting her experience as from upstate New York. [144] DioGuardi criticized Gillibrand's recent photos in Vogue magazine. [145] [146]

New York Democratic primary election [147]
PartyCandidateVotes%
Democratic Kirsten Gillibrand (Incumbent) 464,512 76.1%
Democratic Gail Goode145,49123.9%
Total votes610,003 100.00%
New York Republican primary election [147]
PartyCandidateVotes%
Republican Joseph DioGuardi 185,483 41.8%
Republican David Malpass167,15137.7%
Republican Bruce Blakeman91,31220.5%
Total votes443,946 100.0%
New York general election [148] [1]
PartyCandidateVotes%
Democratic Kirsten Gillibrand (Incumbent)2,479,393
Working Families Kirsten Gillibrand182,655
Independence Kirsten Gillibrand175,636
Total Kirsten Gillibrand (Incumbent)2,837,68459.64%
Republican Joe DioGuardi1,338,308
Conservative Joe DioGuardi244,385
Total Joe DioGuardi 1,582,69333.27%
Green Cecile A. Lawrence35,4890.75%
Libertarian John Clifton18,4140.39%
Rent Is Too Damn High Joseph Huff17,0190.36%
Anti-ProhibitionVivia Morgan11,7870.25%
Tax RevoltBruce Blakeman4,5160.09%
NoneBlank, Void, and Scattered250,0335.26%
Majority1,254,99126.38%
Turnout 4,757,635
Democratic hold

North Carolina

North Carolina election
Flag of North Carolina.svg
  2004
2016  
  Richard Burr official portrait crop.jpg Elaine Marshall IACA 2018 (cropped).jpg
Nominee Richard Burr Elaine Marshall
Party Republican Democratic
Popular vote1,458,0461,145,074
Percentage54.81%43.05%

2010 United States Senate election in North Carolina results map by county.svg
Burr:     40–50%     50–60%     60–70%     70–80%
Marshall:     50–60%     60–70%     70–80%

U.S. senator before election

Richard Burr
Republican

Elected U.S. Senator

Richard Burr
Republican

Incumbent Republican Richard Burr won re-election to a second term. Burr was the first incumbent to win re-election for this seat since Sam Ervin's last re-election in 1968. [149] Burr's 54.8% also represented the highest vote share a North Carolina Republican received since the state began directly electing its senators.

This Senate seat was unfavorable to incumbents over the past several decades. No person elected to this seat was re-elected since Sam Ervin in 1968. His successor, Democrat Robert Burren Morgan, was defeated for re-election in 1980, along with many other incumbents from his party. His Republican successor, John Porter East, committed suicide in 1986. East's appointed successor, Jim Broyhill, served for just four months, resigning upon his November 1986 election loss to former Democratic Governor Terry Sanford. In 1992, the seat changed hands yet again, as Sanford was defeated by wealthy GOP businessman Lauch Faircloth, who himself lost in his bid for a second term six years later by John Edwards. In 2004, no incumbent was defeated, as Edwards was running for vice president and was not allowed to be on the ballot in both races. However, that year the seat did change parties for the fifth time in a row, with Richard Burr defeating Bill Clinton's onetime Chief of Staff Erskine Bowles.

Democratic primary election - May 4, 2010* [150]
PartyCandidateVotes%
Democratic Elaine Marshall 154,605 36.4%
Democratic Cal Cunningham115,85127.3%
Democratic Ken Lewis72,51017.1%
Democratic Marcus W. Williams35,9848.5%
Democratic Susan Harris29,7387.0%
Democratic Ann Worthy16,6553.9%
Total votes425,343 100.0%

* Note: Since no candidate received 40% of the vote on May 4, state law allowed a runoff (or "second primary") election if requested by the second-place finisher. Cunningham requested such a runoff. [151]

Democratic primary election runoff (June 22, 2010) [150]
PartyCandidateVotes%
Democratic Elaine Marshall 95,390 60.0%
Democratic Cal Cunningham63,69140.0%
Total votes159,081 100.0%
Republican primary election - May 4, 2010 [150]
PartyCandidateVotes%
Republican Richard Burr (Incumbent) 297,993 80.1%
Republican Brad Jones37,61610.1%
Republican Eddie Burks22,1115.9%
Republican Larry Linney14,2483.8%
Total votes371,968 100.0%
2010 United States Senate election in North Carolina [152]
PartyCandidateVotes%±%
Republican Richard Burr (Incumbent) 1,458,046 54.81% +3.21%
Democratic Elaine Marshall1,145,07443.05%-3.97%
Libertarian Mike Beitler55,6822.09%+0.72%
Majority312,97211.76%
Total votes2,660,079 100.00%
Republican hold Swing

North Dakota

North Dakota election
Flag of North Dakota.svg
  2004
2016  
  John Hoeven, Official Senate Portrait, 112th Congress.jpg Tracy Potter - 20100704.jpg
Nominee John Hoeven Tracy Potter
Party Republican Democratic–NPL
Popular vote181,68952,955
Percentage76.1%22.2%

2010 United States Senate election in North Dakota results map by county.svg
County results
Hoeven:     50–60%     60–70%     70–80%     80–90%

U.S. senator before election

Byron Dorgan
Democratic–NPL

Elected U.S. Senator

John Hoeven
Republican

Incumbent Democrat Byron Dorgan did not seek re-election. Republican Governor John Hoeven won the open seat. Incumbent Byron Dorgan never had a difficult time getting elected, as he obtained 59%, 63%, and 68% in his three senate election bids, respectively. However, in December 2009, Rasmussen Reports conducted a hypothetical matchup of Governor John Hoeven against the incumbent. Hoeven led by a large margin, 58% to Dorgan's 36%. 61% of the state still had a favorable view of Dorgan, and if pitted against State Senator Duane Sand, the incumbent led 52% to 37%. [153]

Hoeven was challenged in the race by North Dakota State Senator Tracy Potter of Bismarck. Potter received the endorsement of the North Dakota Democratic-NPL Party at its state convention on March 27, 2010. Governor Hoeven and Senator Potter advanced to the November 2, 2010 general election following balloting in North Dakota's primary election, which was held June 8, 2010. Neither candidate faced any significant opposition in the primary election.

Democratic-NPL primary election [154]
PartyCandidateVotes%
Democratic–NPL Tracy Potter 26,211 99.6%
Democratic–NPL Write-ins950.4%
Total votes26,306 100.0%
Republican primary election [154]
PartyCandidateVotes%
Republican John Hoeven 64,978 99.8%
Republican Timothy Beattie1300.2%
Total votes65,108 100.0%
North Dakota election [155]
PartyCandidateVotes%±%
Republican John Hoeven 181,689 76.08% +44.36%
Democratic–NPL Tracy Potter52,95522.17%-46.11%
Libertarian Keith Hanson3,8901.63%N/A
Majority128,73453.91%
Turnout 238,534100.00%
Republican gain from Democratic–NPL Swing

Ohio

Ohio election
Flag of Ohio.svg
  2004
2016  
  Rob Portman portrait.jpg Lee Fisher (4542051920) (cropped).jpg
Nominee Rob Portman Lee Fisher
Party Republican Democratic
Popular vote2,125,8101,448,092
Percentage56.8%39.4%

2010 United States Senate election in Ohio results map by county.svg
Portman:     40–50%     50–60%     60–70%     70–80%
Fisher:     50–60%

U.S. senator before election

George Voinovich
Republican

Elected U.S. Senator

Rob Portman [156]
Republican

Incumbent Republican George Voinovich retired instead of seeking a third term. [157] Republican former Director of the Office of Management and Budget, United States Trade Representative, and Congressman Rob Portman won the open seat.

Democratic primary election [158]
PartyCandidateVotes%
Democratic Lee Irwin Fisher 380,189 55.6%
Democratic Jennifer Lee Brunner304,02644.4%
Total votes684,206 100.0%
Republican primary election [159]
PartyCandidateVotes%
Republican Rob Portman 667,369 100.00%
Total votes657,354 100.00%

Originally, the election was seen as a toss-up. [160] His experience as a former Bush official was considered to be a big problem for Portman. Both President Barack Obama and Vice President Joe Biden campaigned for Fisher. [161] Television advertisements were very negative. Fisher attacked Portman for helping to ship jobs overseas during his entire political career, backing deals that shipped jobs overseas, and the trade deficit with China, which grew by over $41 billion. [162] Portman claimed in response that most jobs were being lost to other states, not countries. [163] Portman attacked Fisher for supporting Obama's stimulus and cap and trade. [164] [165]

Winning the election, Portman received the majority of votes in 82 of 88 counties and in 15 of 18 Congressional districts, including the district of liberal U.S. Congressman Dennis Kucinich. [166]

2010 United States Senate election in Ohio
PartyCandidateVotes%±%
Republican Robert Jones Portman 2,168,742 56.85% -6.61%
Democratic Lee Irwin Fisher1,503,29739.40%+2.85%
Constitution Eric Deaton65,8561.72%N/A
Independent Michael Pryce50,1011.31%N/A
Socialist Daniel LaBotz26,4540.69%N/A
N/A Arthur Sullivan (write-in)6480.02%N/A
Majority665,44517.44%
Total votes3,815,098 100.00%
Republican hold Swing NA

Oklahoma

Oklahoma election
Flag of Oklahoma.svg
  2004
  Tom Coburn official portrait 112th Congress.jpg No image.svg
Nominee Tom Coburn Jim Rogers
Party Republican Democratic
Popular vote718,482265,814
Percentage70.6%26.1%

2010 United States Senate election in Oklahoma results map by county.svg
County results
Coburn:     60–70%     70–80%     80–90%

U.S. senator before election

Tom Coburn
Republican

Elected U.S. Senator

Tom Coburn
Republican

Incumbent first-term Republican Tom Coburn won re-election to a second term. Coburn, a very popular incumbent, promised to limit himself to two terms. Despite his popularity, he did release television advertisements. In 2009, Coburn's approval rating in a PPP poll was 59%, including a 39% approval rating among Democrats. [167] His Democratic opponent is a perennial candidate [168] who did little campaigning. [169]

Democratic primary election [170]
PartyCandidateVotes%
Democratic Jim Rogers 157,955 65.4%
Democratic Mark Myles83,71534.6%
Total votes241,670 100.0%
Republican primary election [170]
PartyCandidateVotes%
Republican Tom Coburn (Incumbent) 223,997 90.4%
Republican Evelyn Rogers15,0936.1%
Republican Lewis Kelly Spring8,8123.5%
Total votes247,902 100.00%
Oklahoma election [171]
PartyCandidateVotes%±%
Republican Tom Coburn (Incumbent) 718,482 70.64% +17.87%
Democratic Jim Rogers265,81426.13%-15.11%
Independent Stephen Wallace25,0482.46%N/A
Independent Ronald F. Dwyer7,8070.77%N/A
Majority452,66844.50%
Total votes1,017,151 100.00%
Republican hold Swing

Oregon

Oregon election
Flag of Oregon.svg
  2004
2016  
  Ron Wyden official portrait crop.jpg Jim Huffman.jpg
Nominee Ron Wyden Jim Huffman
Party Democratic Republican
Popular vote825,507566,199
Percentage57.2%39.3%

2010 United States Senate election in Oregon results map by county.svg
County results
Wyden:     40-50%     50–60%     60–70%     70–80%
Huffman:     40–50%     50–60%     60–70%

U.S. senator before election

Ron Wyden
Democratic

Elected U.S. Senator

Ron Wyden
Democratic

Incumbent Democrat Ron Wyden won re-election to a third full term. Wyden, a popular incumbent with a 52% approval rating in a July poll, [172] touted bipartisanship and promised to hold town-hall meetings annually in each of Oregon's 36 counties and to open offices outside of Portland and Salem. [173] A Survey USA poll taken a few days before the election showed that 23% of Republicans supported Wyden. [174]

Huffman, widely considered as an underdog, financed his own campaign. He defended bonuses for Wall Street executives and questioned global warming. [175]

Democratic primary election [176]
PartyCandidateVotes%
Democratic Ron Wyden (incumbent) 323,652 89.55%
Democratic Loren Hooker25,1526.75%
Democratic Pavel Goberman9,9852.68%
Democratic Write-ins3,7821.02%
Total votes376,353 100.00%
Republican primary election [176]
PartyCandidateVotes%
Republican Jim Huffman 110,450 41.70%
Republican Loren Later39,75315.01%
Republican G. Shane Dinkel36,76013.88%
Republican Thomas Stutzman31,85912.03%
Republican Keith Waldron24,6029.29%
Republican Robin Parker14,6375.53%
Republican Walter Woodland4,4171.67%
Republican Write-ins2,2130.86%
Total votes267,054 100%
Oregon election [177]
PartyCandidateVotes%
Democratic Ron Wyden (Incumbent) 825,507 57.22%
Republican Jim Huffman566,19939.25%
Working Families Bruce Cronk18,9401.31%
Libertarian Marc Delphine16,0281.11%
Progressive Rick Staggenborg14,4661.00%
Write-In1,4480.10%
Total votes1,442,588 100.0%
Democratic hold

Pennsylvania

Pennsylvania election
Flag of Pennsylvania.svg
  2004
2016  
  Pat Toomey Congress.jpg Rear Admiral Joseph A. Sestak cropped.jpg
Nominee Pat Toomey Joe Sestak
Party Republican Democratic
Popular vote2,028,9451,948,716
Percentage51.0%49.0%

2010 United States Senate election in Pennsylvania results map by county.svg
Toomey:     50–60%     60–70%     70–80%Sestak:     50–60%     80–90%

U.S. senator before election

Arlen Specter
Democratic

Elected U.S. Senator

Pat Toomey
Republican

Incumbent Republican-turned-Democrat Arlen Specter ran for re-election to a sixth term, [178] but he lost in the Democratic primary to Joe Sestak. Republican nominee Pat Toomey then won the seat.

Democratic primary election [179]
PartyCandidateVotes%
Democratic Joe Sestak 568,563 53.9%
Democratic Arlen Specter (Incumbent)487,21746.1%
Total votes1,055,780 100.00%
Pennsylvania election [180]
PartyCandidateVotes%±%
Republican Pat Toomey 2,028,945 51.01% -1.61%
Democratic Joe Sestak1,948,71648.99%+7.00%
Majority80,2292.02%
Total votes3,977,661 100.00%
Republican gain from Democratic Swing

South Carolina

South Carolina election
Flag of South Carolina.svg
  2004
  Jim DeMint headshot.jpg AlvinGreene1 (cropped 2).jpg
Nominee Jim DeMint Alvin Greene
Party Republican Democratic
Popular vote810,771364,598
Percentage61.5%27.7%

 
Nominee Tom Clements
Party Green
Popular vote121,472
Percentage9.2%

2010 United States Senate election in South Carolina results map by county.svg
DeMint:     40–50%     50–60%     60–70%     70–80%Greene:     40–50%     50–60%     60–70%

U.S. senator before election

Jim DeMint
Republican

Elected U.S. Senator

Jim DeMint [181]
Republican

Incumbent Republican Jim DeMint won re-election to a second term. Alvin Greene, the Democratic nominee, was the first major-party African-American U.S. Senate candidate in South Carolina since Reconstruction. Alvin Greene's Democratic primary election win and his margin of victory surprised pundits. As of the primary, he had held no public campaign events, raised no money, and did not have a campaign website. A review of the primary election showed that of the state's 46 counties, half had a significant gap between the absentee and primary day ballots. For example, in Lancaster County, Vic Rawl won the absentees with 84 percent, while Greene won primary day by a double-digit margin. Rawl's campaign manager also claimed, "In only two of 88 precincts, do the number of votes Greene got plus the number we got equal the total cast." [182]

Democratic primary election [183]
PartyCandidateVotes%
Democratic Alvin Greene 100,362 59.0%
Democratic Vic Rawl69,85341.0%
Total votes170,215 100.0%
Republican primary election [183]
PartyCandidateVotes%
Republican Jim DeMint (Incumbent) 342,464 83.0%
Republican Susan McDonald Gaddy70,19417.0%
Total votes412,658 100.0%
2010 United States Senate election in South Carolina [184]
PartyCandidateVotes%±%
Republican Jim DeMint (Incumbent) 810,771 61.48% +7.81%
Democratic Alvin Greene364,59827.65%-16.46%
Green Tom Clements121,4729.21%+8.95%
Write-ins21,9531.66%+1.58%
Majority446,17333.83%+24.33%
Total votes1,318,794 50.12% -18.88%
Republican hold Swing

South Dakota

South Dakota election
Flag of South Dakota.svg
  2004
2016  
  John Thune, official portrait, 111th Congress (cropped1).jpg
Nominee John Thune
Party Republican
Popular vote227,947
Percentage100.0%

2010 United States Senate election in South Dakota results map by county.svg
County results
Thune:      100%

U.S. senator before election

John Thune
Republican

Elected U.S. Senator

John Thune
Republican

Incumbent Republican John Thune won re-election to a second term unopposed. [185] [186]

Thune was narrowly elected to his first term over Democratic Senate Minority Leader Tom Daschle with 51% of the vote in 2004. In spite of his lack of seniority, Thune rose to the position of chairman of the Republican Policy Committee in the United States Senate.

No members of the South Dakota Democratic Party (or any other party) filed to challenge Thune. Scott Heidepriem, the South Dakota Senate Minority Leader and a Democratic candidate for Governor of South Dakota, said, "We just concluded that John Thune is an extremely popular senator who is going to win another term in the Senate." [187]

Utah

Utah election
Flag of Utah.svg
  2004
2016  
  Mike Lee official portrait 112th Congress.jpg Sam granato front headshot.jpg
Nominee Mike Lee Sam Granato
Party Republican Democratic
Popular vote390,179207,685
Percentage61.6%32.8%

 
Nominee Scott Bradley
Party Constitution
Popular vote35,937
Percentage5.7%

2010 United States Senate election in Utah results map by county.svg
County results
Lee:     40–50%     50–60%     60–70%     70–80%     80–90%
Granato:     50–60%

U.S. senator before election

Bob Bennett
Republican

Elected U.S. Senator

Mike Lee
Republican

Incumbent Republican Bob Bennett was seeking re-election to a fourth term, but was eliminated in the GOP state convention. Republican Mike Lee, who won the Republican primary, won the open seat.

At the Republican convention, incumbent Senator Bob Bennett finished third in balloting among delegates and was eliminated from the race. Business owner Tim Bridgewater finished first and attorney Mike Lee finished second, but Bridgewater did not receive enough votes to avoid a primary election runoff against Lee. [188] At the Democratic convention, delegates nominated businessman Sam Granato, who received 77.5 percent of the vote. [189]

Republican primary election [190]
PartyCandidateVotes%
Republican Mike Lee 98,512 51.2%
Republican Tim Bridgewater93,90548.8%
Total votes192,417 100.0%
Democratic convention
PartyCandidateVotes%
Democratic Sam Granato 77 77.5%
Democratic Christopher Stout2322.5%
Total votes100 100.0%
Utah election [191]
PartyCandidateVotes%±%
Republican Mike Lee 390,179 61.56% -7.18%
Democratic Sam Granato207,68532.77%+4.37%
Constitution Scott Bradley 35,9375.67%+3.78%
Majority182,49428.79%
Total votes633,801 100.00%
Republican hold Swing

Vermont

Vermont election
Flag of Vermont.svg
  2004
2016  
  Patrick Leahy 113th Congress.jpg No image.svg
Nominee Patrick Leahy Len Britton
Party Democratic Republican
Popular vote151,28172,699
Percentage64.36%30.93%

2010 United States Senate election in Vermont results map by county.svg
2010 United States Senate election in Vermont results map by municipality.svg
Leahy:     30-40%     40-50%     50-60%     60-70%     70-80%     80-90%
Britton:     40-50%     50-60%

U.S. senator before election

Patrick Leahy
Democratic

Elected U.S. Senator

Patrick Leahy [192]
Democratic

Incumbent Democrat Patrick Leahy easily won re-election to a seventh term.

Democratic primary election [193]
PartyCandidateVotes%
Democratic Patrick Leahy (Incumbent) 64,177 89.06%
Democratic Daniel Frielich7,88610.94%
Total votes72,063 100.0%
2010 United States Senate election in Vermont [194]
PartyCandidateVotes%±%
Democratic Patrick Leahy (Incumbent) 151,281 64.36% -6.27%
Republican Len Britton72,69930.93%+6.38%
Independent Daniel Freilich3,5441.51%N/A
Marijuana Cris Ericson2,7311.16%N/A
Independent Stephen Cain2,3561.00%N/A
Socialist Peter Diamondstone 1,4330.61%N/A
Independent Johenry Nunes1,0210.43%N/A
Majority78,52833.43%
Total votes235,065 100.00%
Democratic hold Swing

Washington

Washington election
Flag of Washington.svg
  2004
2016  
  Patty Murray, official portrait, 113th Congress.jpg Dino Rossi (cropped).jpg
Nominee Patty Murray Dino Rossi
Party Democratic Republican
Popular vote1,314,9301,196,164
Percentage52.1%47.4%

2010 United States Senate election in Washington results map by county.svg
County results
Murray:      50–60%     60–70%
Rossi:      40–50%     50–60%     60–70%     70–80%

U.S. senator before election

Patty Murray
Democratic

Elected U.S. Senator

Patty Murray
Democratic

Incumbent Democrat Patty Murray won re-election to a fourth term.

Republican Dino Rossi heavily criticized Murray for her support of the 2009 economic stimulus package; however, Rossi's economic promises are nearly identical to those of President Bush who asked for the stimulus. [195] Rossi supports repealing the Patient Protection and Affordable Care Act and the Dodd-Frank Wall Street Reform and Consumer Protection Act. He also criticized Murray for her support for earmarks. In response, Murray said, "You bet that seniority and leadership has a big thing to do with it, but the other part of it is, I get up every day and I work hard and I believe in this and I am going to continue fighting for the community I represent." [196]

Washington Blanket primary election [197]
PartyCandidateVotes%
Democratic Patty Murray (Incumbent) 670,284 46.22%
Republican Dino Rossi 483,305 33.33%
Republican Clint Didier185,03412.76%
Republican Paul Akers37,2312.57%
Independent Skip Mercer12,1220.84%
Democratic Charles Allen11,5250.79%
Democratic Bob Burr11,3440.78%
Republican Norma Gruber9,1620.63%
Republican Michael Latimer6,5450.45%
Democratic Mike the Mover6,0190.42%
Democratic Goodspaceguy4,7180.33%
Reform William Baker4,5930.32%
Independent Mohammad Said3,3870.23%
Independent Schalk Leonard2,8180.19%
Republican William Chovil2,0390.14%
Total votes1,450,126 100.00%
Washington General election
PartyCandidateVotes%
Democratic Patty Murray (Incumbent) 1,314,930 52.08%
Republican Dino Rossi1,196,16447.37%
Write-in 13,9390.55%
Total votes2,525,033 100.00%
Turnout 71.24%

West Virginia (special)

West Virginia special election
Flag of West Virginia.svg
  2006
2012  
  Joe Manchin official portrait 112th Congress.jpg John Raese.jpg
Nominee Joe Manchin John Raese
Party Democratic Republican
Popular vote283,358230,013
Percentage53.5%43.4%

2010 United States Senate special election in West Virginia results map by county.svg
County results
Manchin:      40–50%     50–60%     60–70%     70–80%
Raese:      50–60%     60–70%     70–80%

U.S. senator before election

Carte Goodwin
Democratic

Elected U.S. Senator

Joe Manchin
Democratic

Long-time Democratic Senator Robert Byrd died June 28, 2010, and Democratic Governor Joe Manchin appointed Carte Goodwin to temporarily fill the vacancy. Goodwin pledged to not run for election to the seat in exchange for the appointment. Manchin won the open seat and served out the remainder of Byrd's elected term, which ended on January 3, 2013. [198]

During the Republican primary campaign, only Raese and Warner released television advertisements. [199]

West Virginia Democratic primary election [200]
PartyCandidateVotes%
Democratic Joe Manchin 67,498 72.9%
Democratic Ken Hechler16,03917.3%
Democratic Sheirl Fletcher9,0359.8%
Total votes92,572 100%
West Virginia Republican primary election [200]
PartyCandidateVotes%
Republican John Raese 38,152 71.4%
Republican Mac Warner7,89214.8%
Republican Scott H. Williams1,5302.9%
Republican Kenneth Culp1,3642.6%
Republican Harry C. Bruner Jr.1,2832.4%
Republican Thomas Ressler1,1842.2%
Republican Lynette Kennedy McQuain9071.7%
Republican Frank Kubic4620.9%
Republican Daniel Scott Rebich4500.8%
Republican Albert Howard1760.3%
Total votes53,400 100%
2010 United States Senate special election in West Virginiaresults [201]
PartyCandidateVotes%±%
Democratic Joe Manchin 283,358 53.47% -10.96%
Republican John Raese230,01343.40%+9.69%
Mountain Jesse Johnson10,1521.92%+0.06%
Constitution Jeff Becker6,4251.21%N/A
Majority53,34510.07%
Total votes529,948 100%
Democratic hold Swing

Wisconsin

Wisconsin election
Flag of Wisconsin.svg
  2004
2016  
  Ron Johnson, official portrait, 112th Congress.jpg Russ Feingold Official Portrait 3.jpg
Nominee Ron Johnson Russ Feingold
Party Republican Democratic
Popular vote1,125,9321,020,841
Percentage51.86%47.02%

2010 United States Senate election in Wisconsin results map by county.svg
Johnson:     40–50%     50–60%     60–70%     70–80%
Feingold:     40–50%     50–60%     60–70%     70–80%

U.S. senator before election

Russ Feingold
Democratic

Elected U.S. Senator

Ron Johnson
Republican

Incumbent Democrat Russ Feingold ran for re-election to a fourth term, but was defeated by political newcomer, Republican Ron Johnson. Johnson, a millionaire manufacturer and Tea Party movement favorite who was running for his first political office, was the front runner. In response to controversy over his ownership of stock in BP, Johnson said he would sell it when market conditions were favorable and possibly use the proceeds to help finance his Senate campaign. Feingold's first television ad was a positive ad released in March. In July 2010, Feingold's second 2010 television election ad attacked Johnson for alleged support for offshore drilling in the Great Lakes. Johnson quickly countered Feingold with a television ad of his own. Feingold's logo was Moving Forward. In one ad he emphasized independence and called himself a "Penny Pincher." [202] Johnson argued that his professions, manufacturer and accountant were underrepresented in the U.S. Senate, and there were too many lawyers (57 out of 100 members), including Feingold. [203]

Wisconsin Republican primary election [204]
PartyCandidateVotes%
Republican Ron Johnson 500,821 84.7%
Republican David Westlake61,28710.4%
Republican Stephen M. Finn29,0024.9%
Total votes591,107 100.0%
Wisconsin election [205]
PartyCandidateVotes%±%
Republican Ron Johnson 1,125,999 51.86% +7.75%
Democratic Russ Feingold (Incumbent)1,020,95847.02%-8.33%
Constitution Rob Taylor23,4731.08%N/A
Write-In Votes9010.04%N/A
Majority105,0414.84%-6.4%
Turnout 2,170,430100.00%-26.4%
Republican gain from Democratic

See also

Notes

  1. A special election in Massachusetts occurred on January 19, 2010.
  2. Although Lieberman was elected as "Connecticut for Lieberman", most sources (including himself) refer to him as an "Independent Democrat" and he is included here as an Independent.
  3. 1 2 3 4 5 6 Both Independent senators Joe Lieberman and Bernie Sanders joined with the Democrats in their caucus.
  4. Interim appointee Roland Burris of Illinois did not seek election to finish the unexpired term and did not seek election to a full term and interim appointees Ted Kaufman and Carte Goodwin did not seek election to finish the unexpired term.
  5. 1 2 3 4 Includes two incumbent appointees who won elections to finish their term or to the next full term.
  6. In Pennsylvania, Arlen Specter lost renomination for another term and Joe Sestak became the party's new nominee.
  7. In Alaska, Lisa Murkowski lost renomination for another term in office and Joe Miller became the party's new nominee, but Murkowski later re-ran as a write-in candidate. In Utah, Bob Bennett lost renomination for another term and Mike Lee became the party's new nominee.
  8. 1 2 The Clerk of the U.S. House of Representatives lists Crist as "No Party Affiliation" in her report and, in the national total, classifies his more than 1.6 million votes under "Other (Scattering, Write-ins, etc.)". [1]
  9. 1 2 Appointee elected
  10. Won both the regular and special elections
  11. The last elections for this group of senators were in 2004, except for those elected in a special election or who were appointed after the resignation or passing of a sitting senator, as noted.
  12. In the 2010 election, Republican nominee Joe Miller won 35.5% of the vote. Murkowski won as a write-in candidate with 39.5% of the vote.
  13. Democrat Ken Salazar won with 51.3% of the vote in 2004, but resigned on January 21, 2009 to become United States Secretary of the Interior.
  14. Democrat Joe Biden won in 2008 with 64.7% of the vote, but resigned on January 15, 2009, to become the vice president of the United States.
  15. Republican Mel Martínez won with 49.4% of the vote in 2004, but resigned on September 9, 2009.
  16. Democrat Barack Obama won in 2004 with 70.0% of the vote, but resigned on November 16, 2008, after being elected president of the United States.
  17. Democrat Ted Kennedy won in 2006 with 69.3% of the vote, but died on August 25, 2009.
  18. Democrat Hillary Clinton won with 67.0% of the vote in 2006, but resigned on January 21, 2009 to become United States Secretary of State.
  19. Switched to the Democratic Party in 2009, last elected as a Republican.
  20. Democrat Robert Byrd won with 64.4% of the vote in 2006, but died on June 28, 2010.
  21. Senator Richard Shelby was originally elected as a Democrat in 1986 and 1992 before switching to a Republican in 1994. Shelby won re-election as a Republican in 1998 and 2004.
  22. Senator Arlen Specter was originally elected as a Republican in 1980 and was subsequently re-elected in 1986, 1992, 1998 and 2004.
  23. Alaska margin given as the difference between Murkowski, running as a write-in candidate, and Miller, who won the Republican primary.

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Further reading