The 1972 United States Senate elections were held on November 7, with the 33 seats of Class 2 contested in regular elections. They coincided with the landslide re-election of Republican President Richard Nixon. Despite Nixon's landslide victory, Democrats increased their majority by two seats. The Democrats picked up open seats in Kentucky and South Dakota, and defeated four incumbent senators: Gordon Allott of Colorado, J. Caleb Boggs of Delaware, Jack Miller of Iowa, and Margaret Chase Smith of Maine. The Republicans picked up open seats in New Mexico, North Carolina, and Oklahoma, and defeated one incumbent, William B. Spong Jr. of Virginia.
The 1948 United States Senate elections were elections which coincided with the election of Democratic President Harry S. Truman for a full term. The 32 seats of Class 2 were contested in regular elections, and one special election was held to fill a vacancy. Truman had campaigned against an "obstructionist" Congress that had blocked many of his initiatives, and in addition the U.S. economy recovered from the postwar recession of 1946–1947 by election day. Thus Truman was rewarded with a Democratic gain of nine seats in the Senate, enough to give them control of the chamber. This was the last time until 2020 that Democrats flipped a chamber of Congress in a presidential election cycle.
The 1940 United States Senate elections coincided with the election of Franklin D. Roosevelt to his third term as president. The 32 seats of Class 1 were contested in regular elections, and special elections were held to fill vacancies.
The 1958 United States House of Representatives elections was an election for the United States House of Representatives to elect members to serve in the 86th United States Congress. They were held for the most part on November 4, 1958, in the middle of Dwight Eisenhower's second presidential term, while Maine held theirs on September 8. There were 436 seats during these elections: 435 from the reapportionment in accordance with the 1950 census, and one seat for Alaska, the new state that would officially join the union on January 3, 1959.
The 1950 United States House of Representatives elections was an election for the United States House of Representatives to elect members to serve in the 82nd United States Congress. They were held for the most part on November 7, 1950, while Maine held theirs on September 11. These elections occurred in the middle of President Harry Truman's second term.
The 1940 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 77th United States Congress. They were held for the most part on November 5, 1940, while Maine held theirs on September 9. They 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 1938 United States House of Representatives elections was an election for the United States House of Representatives were elections for the United States House of Representatives to elect members to serve in the 76th United States Congress. They were held for the most part on November 8, 1938, while Maine held theirs on September 12. They occurred in the middle of President Franklin D. Roosevelt's second term. Roosevelt's Democratic Party lost a net of 72 seats to the Republican Party, who also picked up seats from minor Progressive and Farmer–Labor Parties.
The 1932 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 73rd United States Congress. They were held for the most part on November 8, 1932, while Maine held theirs on September 12. They coincided with the landslide election of President Franklin D. Roosevelt.
The 1930 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 72nd United States Congress. They were held for the most part on November 4, 1930, while Maine held theirs on September 8. They occurred in the middle of President Herbert Hoover's term.
The 1920 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 67th United States Congress. They were held for the most part on November 2, 1920, while Maine held its on September 13. They coincided with the election of President Warren G. Harding, the first time that women in all states were allowed to vote in federal elections after the passage of the 19th Amendment.
1916 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 65th United States Congress. They were held for the most part on November 7, 1916, while Maine held theirs on September 11. They coincided with the re-election of President Woodrow Wilson.
1914 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 64th United States Congress. They were held for the most part on November 3, 1914, while Maine held theirs on September 14. They were held in the middle of President Woodrow Wilson's first term.
The 1884 United States House of Representatives elections were held for the most part on November 4, 1884, with four states holding theirs early between June and October. They coincided with the election of President Grover Cleveland. Elections were held for 325 seats of the United States House of Representatives, representing 38 states, to serve in the 49th United States Congress. Special elections were also held throughout the year.
The 1860–61 United States House of Representatives elections were held on various dates in various states between August 6, 1860, and October 24, 1861, before or after the first session of the 37th United States Congress convened on July 4, 1861. The number of House seats initially increased to 239 when California was apportioned an extra one, but these elections were affected by the outbreak of the American Civil War and resulted in over 56 vacancies.
The 81st United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from January 3, 1949, to January 3, 1951, during the fifth and sixth years of Harry S. Truman's presidency.
The 80th United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from January 3, 1947, to January 3, 1949, during the third and fourth years of Harry S. Truman's presidency. The apportionment of seats in this House of Representatives was based on the 1940 United States census.
The 1948 United States elections were held on November 2, 1948. The election took place during the beginning stages of the Cold War. Democratic incumbent President Harry S. Truman was elected to a full term in an upset, defeating Republican nominee New York Governor Thomas E. Dewey and two erstwhile Democrats. The Democrats won back control of Congress from the Republicans. Until 2020, Democrats would never again flip a chamber of Congress in a presidential election cycle.
The 1952 United States elections were held on November 4, 1952, during the Cold War and the Korean War. General of the Army Dwight D. Eisenhower won the White House in a landslide over Democratic Governor Adlai Stevenson of Illinois. Meanwhile, Republicans narrowly took control of both chambers of Congress, giving Republicans their first trifecta since the Great Depression. This is the last election until 2000 in which the Republicans held both chambers of Congress and the presidency at the same time. For the rest of the century, Republicans would often still win the presidency without full control of Congress.
The 1946 United States elections were held on November 5, 1946, and elected the members of the 80th United States Congress. In the first election after World War II, incumbent President Harry S. Truman and the Democratic Party suffered large losses. After having been in the minority of both chambers of Congress since 1932, Republicans took control of both the House and the Senate.
The 1936 United States elections were held on November 3, 1936, during the Great Depression. Democratic President Franklin D. Roosevelt trounced Governor Alf Landon of Kansas in a landslide and the Democrats built on their majorities in both chambers of Congress.
