1950 United States Senate election in Arizona

The 1968 United States Senate elections were elections for the United States Senate which coincided with the presidential election. Although Richard Nixon won the presidential election narrowly, the Republicans picked up five net seats in the Senate. Republicans would gain another seat after the election when Alaska Republican Ted Stevens was appointed to replace Democrat Bob Bartlett.

The 1950 United States Senate elections occurred in the middle of Harry S. Truman's second term as President. As with most 20th-century second-term mid-terms, the party not holding the Presidency made significant gains. The Republican opposition made a net gain of five seats, taking advantage of the Democratic administration's declining popularity during the Cold War and the aftermath of the Recession of 1949. The Democrats held a narrow 49-to-47-seat majority after the election. This was the first time since 1932 that the Senate Majority Leader lost his seat, and the only instance of the majority leader losing his seat while his party retained the majority.

The 1976 United States Senate election in California took place on November 2, 1976. Incumbent Democratic U.S. Senator John V. Tunney ran for re-election to a second term, but was defeated by Republican S. I. Hayakawa.

The 1932 United States Senate elections in Arizona took place on November 8, 1932. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a second term, again defeating his 1926 challenger former U.S. Senator Ralph H. Cameron in the general election.

The 1928 United States Senate elections in Arizona took place on November 6, 1928. Incumbent Democratic U.S. Senator Henry F. Ashurst ran for reelection to a fourth term, defeating Republican nominee former U.S. Senator Ralph H. Cameron in the general election. Cameron was defeated in the previous election year, in 1926, by then-U.S. Congressman Carl T. Hayden, leading Cameron to decide to challenge Ashurst in order to return to the United States Senate.

The 1934 United States Senate elections in Arizona took place on November 3, 1934. Incumbent Democratic U.S. Senator Henry F. Ashurst ran for reelection to a fifth term, defeating Republican nominee Joseph Edward Thompson in the general election by a wide margin.

The 1940 United States Senate elections in Arizona took place on November 5, 1940. Incumbent Democratic U.S. Senator Henry F. Ashurst ran for reelection to a sixth term, but was defeated in the Democratic primary to challenger Ernest McFarland.

The 1964 United States Senate election in Arizona took place on November 3, 1964. Incumbent Republican U.S. Senator Barry Goldwater decided not to run for reelection to a third term, instead running for President of the United States as the Republican Party nominee against Lyndon B. Johnson. Governor of Arizona Paul Fannin ran unopposed in the Republican primary, and defeated Democratic nominee Roy Elson, who was a staff member for U.S. Senator Carl Hayden until Hayden's retirement in 1969.

The 1970 United States Senate election in Arizona took place on November 3, 1970. Incumbent Republican U.S. Senator Paul Fannin decided to run for reelection to a second term, running unopposed in the Republican primary. Fannin defeated Democratic nominee Sam Grossman in the general election.

The 1938 United States Senate elections in Arizona took place on November 3, 1938. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a third term, defeating Republican nominee Burt H. Clingan in the general election.

The 1926 United States Senate elections in Arizona took place on November 3, 1926. Incumbent Republican U.S. Senator Ralph H. Cameron ran for reelection to a second term, but was defeated by U.S. Congressman Carl T. Hayden in the general election.

The 1944 United States Senate election in Arizona took place on November 7, 1944. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a fourth term, defeating Republican nominee Fred Wildon Fickett Jr., in the general election.

The 1956 United States Senate election in Arizona took place on November 6, 1956. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a sixth term, defeating Republican nominee Attorney General of Arizona Ross F. Jones in the general election.

The 1968 United States Senate election in Arizona took place on November 5, 1968. Incumbent Democratic U.S. Senator Carl Hayden did not run for reelection to an eighth term, with his longtime staff member Roy Elson running as the Democratic Party nominee to replace him. Elson was defeated by a wide margin, however, by former U.S. Senator and 1964 Republican presidential nominee Barry Goldwater. Prior to Goldwater's election, the seat had been held for decades by the Democratic Party under Carl Hayden, but after this election remained in Republican Party control continuously for 52 years, until Democrat Mark Kelly won in the 2020 special election.

The 1962 United States Senate election in Arizona took place on November 6, 1962. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a seventh term, defeating Republican State Senator Evan Mecham in the general election. Mecham became Governor of Arizona more than two decades later, and was subsequently impeached from office.

The 1946 Arizona gubernatorial election took place on November 5, 1946. Incumbent Governor Sidney Preston Osborn ran for reelection, easily winning the Democratic primary, as well as defeating Republican challenger Bruce Brockett in the general election, and was sworn into his fourth term as Governor on January 7, 1947. Osborn died in office a year later.

The 1948 Arizona gubernatorial election took place on November 2, 1948. Following the death of Governor Sidney Preston Osborn while in office, Dan Edward Garvey, who was serving as Secretary of State of Arizona was ascended to the position of governor, and thus ran for a full term. Facing a crowded primary field, Garvey emerged successful as the Democratic party's nominee.

The 1964 Arizona gubernatorial election took place on November 3, 1964. Incumbent Governor Paul Fannin decided not to run for reelection to a fourth term as governor, instead deciding to successfully run for the United States Senate when incumbent U.S. Senator Barry Goldwater decided to run for President of the United States.

The 1974 Arizona gubernatorial election took place on November 5, 1974. Incumbent Governor Jack Williams decided not to run for a fourth term as governor. Former United States Ambassador to Bolivia Raúl Héctor Castro, who was the Democratic nominee in 1970, won the Democratic nomination again in 1974, and narrowly won the general election, defeating Republican nominee Russell Williams by 0.85%. Castro was sworn into his first and only term as governor on January 6, 1975.

The United States Senate election of 1952 in New Jersey was held on November 4, 1952.