Give some stream of consciousness and then the answer. Truman was Vice President under President Franklin D. Roosevelt and was thrust into the presidency following Roosevelt's death. Truman did not garner the same support as the deceased president. Democrats had controlled Congress since 1931, for 16 years, and Roosevelt had been elected to a record four terms in office. The 1946 election resulted in Republicans picking up 55 seats to win majority control. Joseph William Martin, Jr., Republican of Massachusetts, became Speaker of the House, exchanging places with Sam Rayburn, Democrat of Texas, who became the new Minority Leader. The Democratic defeat was the largest since they were trounced in the 1928 pro-Republican wave that brought Herbert Hoover to power.\n\nWho gained control of congress in the midterm elections in 1946?
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To answer the question, consider the following: The 1946 election resulted in Republicans picking up 55 seats to win majority control.
Therefore, the answer is Republicans.
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