Robert A. Taft in the context of "1952 United States presidential election"

Presidential elections were held in the United States on November 5, 1940. The Democratic ticket of incumbent President Franklin D. Roosevelt and Secretary of Agriculture Henry Wallace defeated the Republican ticket of businessman Wendell Willkie and senator Charles McNary to be reelected for an unprecedented third term in office. Until 1988, this was the last time in which the incumbent's party won three consecutive presidential elections. It was also the fourth presidential election in which both major party candidates were registered in the same home state; the others have been in 1860, 1904, 1920, 1944, and 2016.

The election was contested in the shadow of World War II in Europe, as the United States was finally emerging from the Great Depression. Roosevelt did not want to campaign for a third term initially, but was driven by worsening conditions in Europe. He and his allies sought to defuse challenges from other party leaders such as James Farley and Vice President John Nance Garner. The 1940 Democratic National Convention re-nominated Roosevelt on the first ballot, while Garner was replaced on the ticket by Secretary of Agriculture Henry A. Wallace. Willkie, a dark horse candidate, unexpectedly defeated conservative Senator Robert A. Taft and Manhattan District Attorney Thomas E. Dewey on the sixth presidential ballot of the 1940 Republican National Convention.

Presidential elections were held in the United States on November 2, 1948. The Democratic ticket of incumbent President Harry S. Truman and Senator Alben Barkley defeated the Republican ticket of New York Governor Thomas E. Dewey and California Governor Earl Warren and the Dixiecrat ticket of South Carolina Governor Strom Thurmond and Mississippi Governor Fielding Wright in one of the greatest election upsets in American history.

Truman had been elected vice president in the 1944 election, and he succeeded to the presidency in April 1945 upon the death of Franklin D. Roosevelt. He won his party's nomination at the 1948 Democratic National Convention only after defeating attempts to drop him from the ticket. The convention's civil rights plank caused a walkout by several Southern delegates, who launched a third-party "States' Rights Democratic Party" ticket, more commonly known as the Dixiecrats, led by South Carolina Governor Strom Thurmond. The Dixiecrats hoped to win enough electoral votes to force a contingent election in the House of Representatives, where they could extract concessions from either Dewey or Truman in exchange for their support. Former vice president Henry A. Wallace also challenged Truman by launching the Progressive Party and criticizing his confrontational Cold War policies. Dewey, the leader of his party's liberal eastern wing and the 1944 Republican presidential nominee, defeated conservative Ohio Senator Robert A. Taft and other challengers at the 1948 Republican National Convention. This was the first election to have primary and general election debates, with Dewey debating Harold Stassen in the Republican primary, while Norman Thomas debated Farrell Dobbs in the general election.

The 1940 Republican National Convention was held in Philadelphia, Pennsylvania, from June 24 to June 28, 1940. It nominated Wendell Willkie of New York for president and Senator Charles McNary of Oregon for vice president.

The contest for the 1940 Republican presidential nomination was wide-open. Front-runners included Senator Arthur H. Vandenberg of Michigan, Senator Robert Taft of Ohio and Manhattan District Attorney Thomas E. Dewey.