The 1996 United States Senate elections were held on November 5, with the 33 seats of Class 2 contested in regular elections. Special elections were also held to fill vacancies. They coincided with the presidential election of the same year, in which Democrat Bill Clinton was re-elected president.
The 1988 United States Senate elections was an election 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 1986 United States Senate elections were elections for the United States Senate. Held on November 4, in the middle of Ronald Reagan's second presidential term, the 34 seats of Class 3 were contested in regular elections. The Republicans had to defend an unusually large number of freshman Senate incumbents who had been elected on President Ronald Reagan's coattails in 1980. Democrats won a net of eight seats, defeating seven freshman incumbents, picking up two Republican-held open seats, and regaining control of the Senate for the first time since January 1981. This remains the most recent midterm election in which the sitting president's party suffered net losses while still flipping a Senate seat.
The 1982 United States Senate elections were held on November 2, 1982. They were elections for the United States Senate following Republican gains in 1980. The 33 Senate seats of Class 1 were up for election in 1982. A total of four seats changed hands between parties, with Democrats winning seats in New Jersey and New Mexico, and Republicans taking seats in Nevada and the seat of the lone independent, Senator Harry Byrd Jr., in Virginia. Democrats made a net gain of one seat in the elections, while Republicans stayed at 54 seats for a majority. However, the Democratic gain in New Jersey replaced a Republican that had been appointed earlier in the year.
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. 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 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.
The 1974 United States Senate elections were held on November 4, with the 34 seats of Class 3 contested in regular elections. They occurred in the wake of the Watergate scandal, Richard M. Nixon's resignation from the presidency, and Gerald Ford's subsequent pardon of Nixon. Economic issues, specifically inflation and stagnation, were also a factor that contributed to Republican losses. As an immediate result of the November 1974 elections, Democrats made a net gain of three seats from the Republicans, as they defeated Republican incumbents in Colorado and Kentucky and picked up open seats in Florida and Vermont, while Republicans won the open seat in Nevada. Following the elections, at the beginning of the 94th U.S. Congress, the Democratic caucus controlled 61 seats, and the Republican caucus controlled 38 seats.
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 1968 United States Senate elections were elections for the United States Senate. Held on November 5, the 34 seats of Class 3 were contested in regular elections. They coincided with the presidential election of the same year. The Republicans picked up five net seats in the Senate. This saw Republicans win a Senate seat in Florida for the first time since Reconstruction.
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 2022, 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 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. This was the first time since 1932 that Democrats gained seats in this class of Senators.
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 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 1956 United States Senate elections were elections for the United States Senate that coincided with the re-election of President Dwight D. Eisenhower. The 32 seats of Class 3 were contested in regular elections, and three special elections were held to fill vacancies. Although Democrats gained two seats in regular elections, the Republicans gained two seats in special elections, leaving the party balance of the chamber unchanged.
The 1988 U.S. Senate election for the state of North Dakota was held November 8, 1988. Incumbent (Democratic-NPL Senator Quentin Burdick won re-election to his sixth term, defeating Republican candidate Earl Strinden.
The 1962 U.S. Senate election for the state of North Dakota was held November 6, 1962. The incumbent, Republican Senator Milton Young, sought and received re-election to his fourth term, defeating North Dakota Democratic-NPL Party candidate William Lanier of Fargo, North Dakota.
The 1956 U.S. Senate election in North Dakota was held November 6, 1956. The incumbent, Republican Senator Milton Young, sought and received re-election to his third term, defeating North Dakota Democratic-NPL Party candidate Quentin N. Burdick, son of North Dakota congressman Usher L. Burdick.
The 2010 United States Senate election in North Dakota took place on November 2, 2010, alongside 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. Incumbent Democratic-NPL U.S. senator Byron Dorgan announced in January 2010 that he would not seek reelection, leading to the first open seat election since 1992. Republican governor John Hoeven won the seat in a landslide, taking 76.1% of the vote, sweeping every county in the state, and becoming North Dakota's first Republican senator since 1987. Hoeven's 54 point margin of victory was a dramatic and historic shift from the previous election for this seat, when Dorgan won reelection in a 36 point landslide and himself swept every county in the state.
The 2022 United States Senate elections were held on November 8, 2022, concurrently with the midterm elections at the federal, state and local level, including the 2022 U.S. House of Representatives elections. Regularly scheduled elections were held for 34 of the 100 seats in the U.S. Senate, the winners of which will serve six-year terms in the U.S. Congress from January 3, 2023, to January 3, 2029, starting with the 118th United States Congress. One special election was also held to complete an unexpired term ending January 3, 2027. While pundits considered the Republican Party a slight favorite to gain control of the Senate, the Democratic Party outperformed expectations and expanded the majority they had held since 2021.
