| 64th United States Congress | |
|---|---|
63rd ← → 65th | |
 United States Capitol (1906) | |
March 4, 1915 – March 4, 1917 | |
| Members | 96 senators 435 representatives 5 non-voting delegates |
| Senate majority | Democratic |
| Senate President | Thomas R. Marshall (D) |
| House majority | Democratic |
| House Speaker | Champ Clark (D) |
| Sessions | |
| 1st: December 6, 1915 – September 8, 1916 2nd: December 4, 1916 – March 3, 1917 (lame duck) | |
The 64th 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 March 4, 1915, to March 4, 1917, during the third and fourth years of Woodrow Wilson's presidency. The apportionment of seats in the House of Representatives was based on the 1910 United States census.
The Democrats maintained a majority in both chambers (albeit reduced in the House) and, along with President Wilson, also maintained an overall federal government trifecta.