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 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 1978 United States Senate election in Maine was held on November 7, 1978. Incumbent Democratic U.S. Senator William Hathaway ran for re-election to a second term, but was defeated by William Cohen, the Republican U.S. Representative from Maine's 2nd congressional district.
The 1926 United States Senate election in Illinois took place on November 2, 1926.
The 1968 United States Senate election in Missouri took place on November 5, 1968.
The 1914 United States Senate election in New York was held on November 3. Incumbent Republican Senator Elihu Root chose not to seek re-election. James Wolcott Wadsworth Jr. was elected to a succeed Root, defeating Democrat James Watson Gerard.
The 1946 United States Senate elections in Ohio was held on November 5, 1946, alongside a concurrent special election to the same seat.
The 1968 United States Senate election in Ohio took place on November 5, 1968. Incumbent Senator Frank Lausche ran for re-election to a third term, but lost the Democratic primary to former U.S. Representative John J. Gilligan. Before losing the primary to the more solidly liberal Gilligan, Lausche had one of the most conservative voting record among Senate Democrats, leaving the Democratic Party very disappointed. In the general election, Gilligan lost to Republican Ohio Attorney General William Saxbe in a close race. Saxbe's victory increased the number of Senate Republicans in the 91st Congress. He would serve 5 years in the Senate before being nominated by President Richard Nixon to be U.S Attorney General, he resigned the seat after being confirmed. Gilligan, who in January 1974 was serving as the Governor of Ohio, named Saxbe's successor.
The 1952 United States Senate election in Tennessee was held on November 4, 1952. Incumbent Democratic Senator and President pro tempore of the Senate Kenneth D. McKellar ran for re-election to a seventh term in office but was defeated in the Democratic primary by U.S. Representative Al Gore Sr. Gore easily won the general election against Republican Hobart Atkins.
The 1952 United States Senate election in Missouri was held on November 4, 1952.
The 1954 United States Senate special election in California was held on November 2, 1954, to elect a U.S. Senator to complete the unexpired term of Senator Richard Nixon, who resigned on becoming Vice President of the United States following the 1952 presidential election. Incumbent Republican U.S. Senator Thomas Kuchel, who had been appointed by Governor Earl Warren, won election to the remainder of the term, defeating Democratic nominee Sam Yorty.
The 1918 United States Senate election in Illinois took place on November 5, 1918.
The 1922 United States Senate election in Missouri was held on November 7, 1922. Incumbent Democratic U.S. Senator James A. Reed was re-elected to a third term over Republican R. R. Brewster.
The 1928 United States Senate election in Missouri was held on November 6, 1928. Incumbent Democratic U.S. Senator James A. Reed did not run for re-election to a third term. Republican U.S. Representative Roscoe C. Patterson defeated Democrat Charles Hay to win the open seat.
The 1940 United States Senate election in Michigan was held on November 5, 1940.
The 1946 United States Senate election in Tennessee was held on November 5, 1946. Incumbent Democratic Senator Kenneth D. McKellar was re-elected to a sixth term in office. He defeated a primary challenge by Edward W. Carmack Jr. and easily won the general election against Republican William B. Ladd, and Independent candidate John Randolph Neal Jr.
The 1962 United States Senate election in Kentucky took place on November 6, 1962. Incumbent Republican Senator Thruston Ballard Morton won re-election to a second term.
The 1964 United States Senate election in Maryland was held on November 3, 1964.
The 1964 United States Senate election in Missouri took place on November 3, 1964. Incumbent Democratic U.S. Senator Stuart Symington was re-elected to a third term in office over Republican Jean Paul Bradshaw.
The 1970 United States Senate election in Missouri took place on November 3, 1970. Incumbent Democratic U.S. Senator Stuart Symington was re-elected to a fourth term in office over Republican John Danforth.
