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 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 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 allowed the Senate Democrats to override a veto, propose constitutional amendments, or convict and expel certain officials without any votes from Senate Republicans. However, internal divisions would have prevented the Democrats from having done 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 1958 United States Senate elections were elections for the United States Senate which occurred in the middle of President Dwight D. Eisenhower's second term. Thirty-two seats of Class 1 were contested in regular elections, the new state of Alaska held its first Senate elections for its Class 2 and 3 seats, and two special elections were held to fill vacancies.
The Mississippi Republican Party is the Mississippi state affiliate of the United States Republican Party. The party chairman is Frank Bordeaux, and the party is based in Jackson, Mississippi. The original Republican Party of Mississippi was founded following the American Civil War, and the current incarnation of the Mississippi Republican Party was founded in 1956. The party would grow in popularity after the 1964 Civil Rights Act and is currently the dominant party in the state.
Victoria Jackson Gray Adams was an American civil rights activist from Hattiesburg, Mississippi. She was one of the founding members of the influential Mississippi Freedom Democratic Party.
The Mississippi Democratic Party is the affiliate of the Democratic Party in the state of Mississippi. The party headquarters is located in Jackson, Mississippi.
The 1978 United States Senate election in Mississippi was held on November 5, 1978. Incumbent Democratic U.S. Senator James Eastland decided to retire.
The 1988 United States Senate election in Mississippi was held on November 8, 1988. Incumbent Democratic U.S. Senator John C. Stennis decided to retire instead of seeking a seventh full term. Republican Trent Lott won the open seat, becoming the first of his party to win this seat since 1874.
The 1982 United States Senate election in Mississippi was held on November 2, 1982. Incumbent Senator John C. Stennis won re-election to his seventh term. As of 2024, this was the last time Democrats won a U.S. Senate election in Mississippi.
The 1976 United States Senate election in Mississippi was held on November 2, 1976. Incumbent Democratic U.S. Senator John C. Stennis won re-election to his sixth term.
The 1958 United States Senate election in Mississippi took place on November 4, 1958. Incumbent Democratic U.S. Senator John C. Stennis was re-elected to a third term in office.
The 1952 United States Senate election in Mississippi took place on November 4, 1952. Incumbent Democratic U.S. Senator John C. Stennis was re-elected to his second term in office.
The 1946 United States Senate election in Mississippi was held on November 3, 1946. Incumbent Democratic U.S. Senator Theodore G. Bilbo won re-election to his third term.
The 1966 United States Senate election in Mississippi was held on November 8, 1966.
The 1970 United States Senate election in Mississippi was held on November 3, 1970. Incumbent Democratic U.S. Senator John C. Stennis won re-election to his fifth term, easily defeating independent candidate William Richard Thompson.
The 1972 United States Senate election in Mississippi was held on November 7, 1972. Incumbent Democratic U.S. Senator James Eastland won re-election to his sixth term. To date, this was the last time that the Democrats won the Class 2 Senate seat in Mississippi. Mississippi was one of fifteen states alongside Alabama, Arkansas, Colorado, Delaware, Georgia, Iowa, Louisiana, Maine, Minnesota, Montana, New Hampshire, Rhode Island, South Dakota and West Virginia that were won by Republican President Richard Nixon in 1972 that elected Democrats to the United States Senate.
