Herbert Hoover's tenure as the 31st president of the United States began on his inauguration on March 4, 1929, and ended on March 4, 1933. Hoover, a Republican, took office after a landslide victory in the 1928 presidential election over Democrat Al Smith of New York. His presidency ended following his defeat in the 1932 presidential election by Democrat Franklin D. Roosevelt.

The 72nd United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1931, to March 4, 1933, during the last two years of Herbert Hoover's presidency. The apportionment of seats in this House of Representatives was based on the 1910 United States census. The Senate had a Republican majority. The House started with a very slim Republican majority, but by the time it first met in December 1931, the Democrats had gained a majority through special elections.