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.
The 2010 United States Senate elections were held on November 2, 2010, from among the United States Senate's 100 seats. A special election was held on January 19, 2010, for a mid-term vacancy in Massachusetts. 34 of the November elections were for 6-year terms to the Senate's Class 3, while other 3 were special elections to finish incomplete terms. Those 37 November elections featured 19 incumbent Democrats and 18 incumbent Republicans.
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 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 1954 United States Senate elections was a midterm election in the first term of Dwight D. Eisenhower's presidency. The 32 Senate seats of Class 2 were contested in regular elections, and six special elections were held to fill vacancies. Eisenhower's Republican party lost a net of two seats to the Democratic opposition. This small change was just enough to give Democrats control of the chamber with the help of the Independent who at the start of this Congress in January 1955 agreed to caucus with them; he later officially joined the party in April 1955.
The 1944 United States Senate elections coincided with the re-election of Franklin D. Roosevelt to his fourth term as president. The 32 seats of Class 3 were contested in regular elections, and three special elections were held to fill vacancies.
The 1922 United States Senate elections were elections that occurred in the middle of Republican President Warren G. Harding's term. The 32 seats of Class 1 were contested in regular elections, and special elections were held to fill vacancies. With the Republicans divided between conservative and progressive factions, the Democrats gained six net seats from the Republicans while the Farmer–Labor party gained one. The Republicans retained their Senate majority.
The 1992 United States Senate special election in California took place on November 3, 1992, at the same time as the regular election to the United States Senate in California. Feinstein defeated future California governor Gray Davis in the Democratic primary, while Seymour defeated William E. Dannemeyer in the Republican primary.
New Jersey's 28th legislative district is one of 40 in the New Jersey Legislature. The district includes the Essex County municipalities of Maplewood, Irvington and South Orange, along with portions of Newark ; and the Union County municipality of Hillside.
The 1954 United States Senate election in North Carolina was held on November 2, 1954. Interim Democratic Senator Alton A. Lennon, who had been appointed to fill the vacant seat left by the death of Willis Smith, ran for re-election. Lennon lost the Democratic primary to former Governor W. Kerr Scott, who easily won the general election over Republican Paul C. West.
The 1962 United States Senate special election in New Hampshire took place on November 6, 1962, to elect a U.S. Senator to complete the unexpired term of Senator Styles Bridges, who died on November 26, 1961. New Hampshire Attorney General Maurice J. Murphy Jr. was appointed on December 7, 1961 by Governor Wesley Powell to fill the vacancy until a special election could be held.
The 1991 New Jersey Senate election was held on November 5. The election took place mid-way through the term of Governor James Florio. The results were a landslide victory for the Republican Party amidst a tax revolt by New Jersey voters. Democrats picked up only one seat, that of Senator Lee B. Laskin. Republicans picked up eleven Democrat seats, winning control of the Senate for the first time since 1974. This was the first election after the 1990 census.
The 1993 New Jersey Senate election was held on November 2.
The 1993 New Jersey State Senate elections were held on November 4.
The 2003 New Jersey State Senate elections were held on November 4.
The 2011 New Jersey State Senate elections were held on November 4. The election took place midway through Chris Christie's first term as Governor of New Jersey. No seats changed hands, though Democrats had gained one seat in a 2010 special election with Linda Greenstein's victory over Tom Goodwin.
The 1985 New Jersey General Assembly election was held on November 5, 1985.
The 1991 New Jersey General Assembly election was held on November 5, 1991.
The 1959 New Jersey Senate elections were held on November 3.
