The 1980 United States Senate elections were held on November 4, coinciding with Ronald Reagan's victory in the presidential election. The 34 Senate seats of Class 3 were contested in regular elections. Reagan's large margin of victory over incumbent Jimmy Carter gave a huge boost to Republican Senate candidates, allowing them to flip 12 Democratic seats and win control of the chamber for the first time since the end of the 83rd Congress in January 1955.
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 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 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 1960 United States Senate elections coincided with the election of John F. Kennedy as president on November 8, 1960. The 33 seats of Class 2 were contested in regular elections. A special election was also held on June 28, 1960, for a mid-term vacancy in North Dakota where Democrats flipped a seat to expand their majority to 66-34. As Majority Leader Lyndon Johnson was elected Vice President, Mike Mansfield became the new Majority Leader.
Clifford Philip Case Jr., was an American lawyer and politician. A member of the Republican Party, he served as a U.S. Representative (1945–1953) and a U.S. Senator (1955–1979) from New Jersey. He is currently the most recent elected Republican senator from New Jersey.
Paul Joseph Krebs was an American labor union official and Democratic Party politician. He served as a U.S. Representative for New Jersey's 12th congressional district for one term from 1965 to 1967.
The 1970 United States Senate election in New Jersey was held on November 3, 1970. Incumbent Democrat Harrison A. Williams defeated Republican nominee Nelson G. Gross with 54.02% of the vote.
The 1976 United States Senate election in New Jersey was held on November 2, 1976. Incumbent Democrat Harrison A. Williams defeated Republican nominee David A. Norcross with 60.66% of the vote.
The 1926 United States Senate election in Illinois took place on November 2, 1926.
The 1978 United States Senate election in New Jersey was held on November 7, 1978. Incumbent Senator Clifford P. Case ran for re-election to a fifth term in office, narrowly losing the Republican primary by anti-tax conservative Jeff Bell, who lost the general election to Democrat Bill Bradley.
The 1973 New Jersey State Senate Senate elections were held on November 6. The result of the elections were large gains for the Democratic Party, which won control of the Senate. The party picked up twelve seats. This election marked the first time since 1967 that Democrats controlled the State Senate.
The 1964 United States Senate election in Texas was held on November 3, 1964. Incumbent Democratic US Senator Ralph Yarborough defeated future US President George H. W. Bush handily. This would prove to be Yarborough's final term as a senator. Bush later went on to win an election for the US House of Representatives in 1966 and was subsequently elected US Vice President in 1980, re-elected in 1984, and was elected president in 1988.
The 1954 United States Senate election in New Jersey was held on November 2, 1954. Republican U.S Representative Clifford P. Case defeated Democratic U.S. Representative Charles R. Howell with 48.66% of the vote.
The 1960 United States Senate election in New Jersey was held on November 8, 1960. Incumbent Republican Clifford P. Case defeated Democratic nominee Thorn Lord with 55.69% of the vote.
The 1966 United States Senate election in New Jersey was held on November 8, 1966. Incumbent Republican Clifford P. Case defeated Democratic nominee Warren W. Wilentz with 60.02% of the vote.
The 1972 United States Senate election in Louisiana was held on November 9, 1972.
The 1972 United States Senate election in South Dakota took place on November 7, 1972, concurrently with the U.S. presidential election as well as other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections.
The 1958 United States Senate election in New Jersey was held on November 4, 1958.
