The 1976 United States House of Representatives elections were elections for the United States House of Representatives that coincided with Jimmy Carter's election as president. Carter's narrow victory over Gerald Ford had limited coattails, and his Democratic Party gained a net of only one seat from the Republican Party in the House. This election is notable for being the last time any party had a veto-proof majority in the House.
The 1974 United States House of Representatives elections were elections for the United States House of Representatives in 1974 that occurred in the wake of the Watergate scandal, which had forced President Richard Nixon to resign in favor of Gerald Ford. This scandal, along with high inflation, allowed the Democrats to make large gains in the midterm elections, taking 49 seats from the Republicans and increasing their majority above the two-thirds mark. Altogether, there were 93 freshmen representatives in the 94th Congress when it convened on January 3, 1975. Those elected to office that year later came to be known collectively as "Watergate Babies." The gain of 49 Democratic seats was the largest pickup by the party since 1958.
The 1968 United States House of Representatives elections were elections for the United States House of Representatives in 1968 which coincided with Richard M. Nixon's election as President. Nixon's narrow victory yielded only limited gains for his Republican Party, which picked up a net of five seats from the Democratic Party. The Democrats retained a majority in the House.
The 1964 United States House of Representatives elections was an election for the United States House of Representatives in 1964 which coincided with the election to a full term of President Lyndon B. Johnson. Johnson's landslide victory over Barry Goldwater allowed his Democratic Party to gain a net of 36 seats from the Republican Party, giving them a two-thirds majority in the House. The election also marked the first time since Reconstruction that Republicans made inroads in the deep South.
The 1956 United States House of Representatives elections was an election for the United States House of Representatives in 1956 which coincided with the re-election of President Dwight D. Eisenhower.
The 1948 United States House of Representatives elections were elections for the United States House of Representatives in 1948 which coincided with President Harry S. Truman's election to a full term. Truman had campaigned against a "do-nothing"' Republican Party Congress that had opposed his initiatives and was seen as counterproductive. The Democratic Party regained control of both the House and Senate in this election. For Democrats, this was their largest gain since 1932. These were the last elections until 1980 when a member of a political party other than the Democrats, Republicans, or an Independent had one or more seats in the chamber. As of 2021, this is the last time the Democrats gained more than 50 seats in an election.
The 1940 United States House of Representatives elections coincided with President Franklin D. Roosevelt's re-election to an unprecedented third term. His Democratic Party narrowly gained seats from the opposition Republican Party, cementing their majority. However, the election gave firm control of the US House of Representatives and Senate to the New Dealers once again, as Progressives dominated the election.
The 1934 United States House of Representatives elections were held in the middle of President Franklin D. Roosevelt's first term. The Democratic Party continued its progress, gaining another 9 net seats from the opposition Republican Party, who also lost seats to the Progressive Party. The Republicans were reduced below one-fourth of the chamber for the first time since the creation of the party. The Wisconsin Progressive Party, a liberal group which allied with the Democrats, also became a force in Wisconsin politics.
The 1932 United States House of Representatives elections was an election for the United States House of Representatives in 1932 which coincided with the landslide election of President Franklin D. Roosevelt.
The 1924 United States House of Representatives elections was an election for the United States House of Representatives in 1924 which coincided with the election to a full term of President Calvin Coolidge, who had replaced Warren Harding following his death.
The 1848 and 1849 United States House of Representatives elections were held at various dates in different states from August 1848 to November 1849.
The 1846 and 1847 United States Senate elections were elections which had the Democratic Party gain four seats in the United States Senate.
In the 1870 and 1871 United States Senate elections, the Republican Party lost five seats in the United States Senate, though it still retained an overwhelming majority. In advance of these elections, the last four seceded states were readmitted to the Senate.
The 1876 and 1877 United States Senate elections had the Democratic Party gain five seats in the United States Senate, and coincided with Rutherford B. Hayes's narrow election as president. Republicans remained in the majority, however.
The 1888 and 1889 United States Senate elections were elections that coincided with Benjamin Harrison's victory over incumbent President Grover Cleveland. Both parties were unchanged in the regular elections, but later special elections would give Republicans an eight-seat majority, mostly from newly admitted states.
The 1820 and 1821 United States Senate elections were elections for the United States Senate that, corresponding with James Monroe's landslide re-election, had the Democratic-Republican Party gain one-to-five seats, assuming almost complete control of the Senate.
In the 1828 and 1829 United States Senate elections, the Jacksonian coalition, despite its leader's victory in the presidential election, lost a seat in the Senate to the opposing Anti-Jacksonian coalition.
The 1864 and 1865 United States Senate elections were elections corresponding with Abraham Lincoln's re-election, with the Republican Party gaining two seats in the United States Senate. As these elections occurred during the Civil War, most of the Southern States were absent.
The 1860 and 1861 United States Senate elections were elections corresponding with Abraham Lincoln's election to the presidency. The nascent Republican Party increased their Senate seats in the regular elections, and after southern Democrats withdrew to join the Confederacy, Republicans gained control of the United States Senate. To establish a quorum with fewer members, a lower total seat number was taken into account.
