John Bennett Johnston Jr. is a retired American attorney, politician, and later lobbyist. A member of the Democratic Party, Johnston represented Louisiana in the U.S. Senate from 1972 to 1997.
Allen Joseph Ellender was an American politician and lawyer who was a U.S. Senator from Louisiana from 1937 until his death. He was a Democrat who was originally allied with Huey Long. As Senator he compiled a generally conservative record, voting 77% of the time with the Conservative Coalition on domestic issues. A staunch segregationist, he signed the Southern Manifesto in 1956, voted against the Voting Rights Act of 1965, and opposed anti-lynching legislation in 1938. Unlike many Democrats he was not a "hawk" in foreign policy and opposed the Vietnam War.
The 1990 United States Senate elections were held on Tuesday, November 6, 1990, with the 33 seats of Class 2 contested in regular elections. Special elections were also held to fill vacancies. The Democratic Party increased its majority with a net gain of one seat from the Republican Party. The election took place in the middle of President George H. W. Bush's term, and, as with most other midterm elections, the party not holding the presidency gained seats in Congress.
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. Thirteen seats changed hands between parties, resulting in a net gain of three seats for the Republicans. Democrats nevertheless retained a 58–41 majority.
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. Despite Republican gains, the balance remained overwhelmingly in favor of the Democrats, who retained a 64–36 majority.
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. The Republicans gained two seats at the expense of the Democrats. However, Republican Senator-elect Edwin Keith Thomson of Wyoming died December 9, 1960, and was replaced by appointee Democratic John J. Hickey at the beginning of the Congress, reducing Republican gains to one seat.
The 1948 United States Senate election in Louisiana was held on November 2, 1948. Incumbent Senator Allen J. Ellender was re-elected to a third term in office.
The 1932 United States Senate election in Louisiana was held on November 8, 1932. Incumbent Democratic Senator Edwin Broussard ran for a third term in office, but was defeated in the primary by U.S. Representative John H. Overton.
The 1920 United States Senate election in Louisiana was held on November 2, 1920. Incumbent Senator Edward J. Gay did not run for re-election.
The 1950 United States Senate election in Louisiana was held on November 7, 1950. Incumbent Democratic U.S. Senator Russell B. Long won re-election to a second term.
The 1926 United States Senate election in Louisiana was held on November 2, 1926. Incumbent Democratic Senator Edwin Broussard was elected to a second term in office.
The 1930 United States Senate election in Louisiana was held on November 4, 1930.
The 1936 United States Senate special election in Louisiana took place on April 21, 1936, to fill the remainder of the late former Senator Huey Long's six-year term. Long was first elected to the Senate in 1930 and was assassinated on September 10, 1935.
The 1954 United States Senate election in Louisiana was held on November 2, 1954. Incumbent Senator Allen J. Ellender was re-elected to a fourth term in office.
The 1960 United States Senate election in Louisiana took place on November 8, 1960. Incumbent Democratic Senator Allen J. Ellender won re-election to a fifth term.
The 1968 United States Senate election in Louisiana was held on November 5, 1968. Incumbent Democratic Senator Russell Long was elected to a fifth term in office.
The 1972 United States Senate election in Louisiana was held on November 9, 1972.
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. As of 2023, this was the last time that the Democrats won the Class 2 Senate seat in Mississippi.
The 1974 United States Senate election in Louisiana was held on November 5, 1974. Incumbent Democratic Senator Russell Long was elected to a sixth term in office.
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