The 1994 United States Senate elections were held November 8, 1994, with the 33 seats of Class 1 contested in regular elections. Special elections were also held to fill vacancies. The Republican Party took control of the Senate from the Democrats. Like for most other midterm elections, the opposition, this time being the Republicans, held the traditional advantage. The congressional Republicans campaigned against the early presidency of Bill Clinton, including his unsuccessful health care plan. Democrats held a 56-44 majority, after having lost a seat in Texas in a 1993 special election.
The 1988 United States Senate elections were elections for the United States Senate. Held on November 8, the 33 seats of Class 1 were contested in regular elections. In spite of the Republican victory by George H. W. Bush in the presidential election, the Democrats gained a net of one seat in the Senate. Seven seats changed parties, with four incumbents being defeated. The Democratic majority in the Senate increased by one to 55–to–45.
The 1978 United States Senate elections were held on November 7, in the middle of Democratic President Jimmy Carter's term. The 33 seats of Class 2 were contested in regular elections. Special elections were also held to fill vacancies.
The 1976 United States Senate elections was an election for the United States Senate. Held on November 2, the 33 seats of Class 1 were contested in regular elections. They coincided with Democrat Jimmy Carter's presidential election and the United States Bicentennial celebration. Although almost half of the seats decided in this election changed parties, Carter's narrow victory did not provide coattails for the Democratic Party. Each party flipped seven Senate seats, although, one of the seats flipped by Democrats was previously held by a Conservative.
The 1972 United States Senate elections were held on November 7, with the 33 seats of Class 2 contested in regular elections. They coincided with the landslide re-election of Republican President Richard Nixon. Despite Nixon's landslide victory, Democrats increased their majority by two seats. The Democrats picked up open seats in Kentucky and South Dakota, and defeated four incumbent senators: Gordon Allott of Colorado, J. Caleb Boggs of Delaware, Jack Miller of Iowa, and Margaret Chase Smith of Maine. The Republicans picked up open seats in New Mexico, North Carolina, and Oklahoma, and defeated one incumbent, William B. Spong Jr. of Virginia.
The 1970 United States Senate elections was an election for the United States Senate. It took place on November 3, with the 33 seats of Class 1 contested in regular elections. Special elections were also held to fill vacancies. These races occurred in the middle of Richard Nixon's first term as president. The Democrats lost a net of three seats, while the Republicans and the Conservative Party of New York picked up one net seat each, and former Democrat Harry F. Byrd Jr. was re-elected as an independent.
The 1966 United States Senate elections were elections on November 8, 1966, for the United States Senate which occurred midway through the second term of President Lyndon B. Johnson. The 33 seats of Class 2 were contested in regular elections. Special elections were also held to fill vacancies. With divisions in the Democratic base over the Vietnam War, and with the traditional mid-term advantage of the party not holding the presidency, the Republicans took three Democratic seats, thereby breaking Democrats' 2/3rds supermajority. Despite Republican gains, the balance remained overwhelmingly in favor of the Democrats, who retained a 64–36 majority. Democrats were further reduced to 63–37, following the death of Robert F. Kennedy in June 1968.
The 1964 United States Senate elections were held on November 3. The 33 seats of Class 1 were contested in regular elections. Special elections were also held to fill vacancies. They coincided with the election of President Lyndon B. Johnson by an overwhelming majority, to a full term. His Democratic Party picked up a net two seats from the Republicans. As of 2023, this was the last time either party has had a two-thirds majority in the Senate, which would have hypothetically allowed the Senate Democrats to override a veto, propose constitutional amendments, or convict and expel certain officials without any votes from Senate Republicans. In practice, however, internal divisions effectively prevented the Democrats from doing so. The Senate election cycle coincided with Democratic gains in the House in the same year.
The 1962 United States Senate elections was an election for the United States Senate. Held on November 6, the 34 seats of Class 3 were contested in regular elections. Special elections were also held to fill vacancies. They occurred in the middle of President John F. Kennedy's term. His Democratic Party made a net gain of four seats from the Republicans, increasing their control of the Senate to 68–32. However, this was reduced to 67–33 between the election and the next Congress, as on November 18, 1962, Democrat Dennis Chávez, who was not up for election that year, died. He was replaced on November 30, 1962, by Republican appointee Edwin L. Mechem. Additionally, Democrat Strom Thurmond became a Republican in 1964, further reducing Democrats to 66–34. This was the first time since 1932 that Democrats gained seats in this class of Senators.
The 1954 United States Senate elections was a midterm election in the first term of Dwight D. Eisenhower's presidency. The 32 Senate seats of Class 2 were contested in regular elections, and six special elections were held to fill vacancies. Eisenhower's Republican party lost a net of two seats to the Democratic opposition. This small change was just enough to give Democrats control of the chamber with the support of an Independent who agreed to caucus with them, he later officially joined the party in April 1955.
The 2006 United States Senate election in Massachusetts was held November 7, 2006. Incumbent Democrat Ted Kennedy won re-election to his ninth term. This would be Kennedy's last election to the Senate; he died three years later of brain cancer, with which he was diagnosed in 2008. Senator Kennedy was the fourth longest-serving Senator in U.S. history, having served for nearly 47 years.
The 1984 United States Senate election in Massachusetts was held on November 6, to elect a member of the U.S. Senate from the State of Massachusetts. The election was won by Democrat John Kerry, the Lieutenant Governor of Massachusetts, who remained Senator until 2013, when he resigned to become United States Secretary of State. One-term incumbent Democratic Senator Paul Tsongas declined to seek re-election after developing cancer.
The 1976 United States Senate election in Massachusetts was held on November 2, 1976. Incumbent Democratic U.S. Senator Ted Kennedy won re-election to his fourth term.
The 1966 United States Senate election in Massachusetts was held on November 8, 1966. Republican incumbent Leverett Saltonstall retired after serving for 22 years. Republican Massachusetts Attorney General Edward Brooke defeated Democratic former Governor of Massachusetts Endicott Peabody in a landslide.
The 1964 United States Senate election in Massachusetts was held on November 3, 1964, with the incumbent Democratic senator, Ted Kennedy, easily defeating his Republican challenger Howard J. Whitmore Jr.
Electoral history of Ted Kennedy, United States Senator from Massachusetts (1962–2009) and, at the time of his death, the second most senior member of the Senate.
The 1958 United States Senate election in Massachusetts was held on November 4, 1958. Democratic incumbent John F. Kennedy was reelected to a second six-year term, defeating Republican candidate Vincent J. Celeste.
The 1974 Massachusetts general election was held on November 5, 1974, throughout Massachusetts. Democratic and Republican candidates were selected in party primaries held September 10, 1974.
The 1970 Massachusetts general election was held on November 3, 1970, throughout Massachusetts. Democratic and Republican candidates were selected in party primaries held September 15, 1970.
The 1966 United States Senate election in Minnesota took place on November 8, 1966. Incumbent Democratic U.S. Senator Walter Mondale, who had originally been appointed in 1964 to replace Hubert Humphrey after Humphrey was elected Vice President of the United States, defeated Republican challenger Robert A. Forsythe, to win a full term.
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