United States House of Representatives

The United States House of Representatives is a chamber of the bicameral United States Congress; it is the lower house, with the United States Senate being the upper house. Together, the House and Senate have the authority under Article One of the Constitution of the United States in enumerated matters to pass or defeat federal legislation, known as bills. Those that are also passed by the Senate are sent to the president for signature or veto. The House's exclusive powers include initiating all revenue bills, impeaching federal officers, and electing the president if no candidate receives a majority of votes in the Electoral College.

Members of the House serve a fixed term of two years, with each seat up for election before the start of the next Congress. Special elections may occur in the case of a vacancy. The House's composition was established by Article One of the United States Constitution. The House is composed of representatives who, pursuant to the Uniform Congressional District Act, sit in single member congressional districts allocated to each state on the basis of population as measured by the United States census, provided that each state gets at least one representative. Since its inception in 1789, all representatives have been directly elected. Although suffrage was initially limited, it gradually widened, particularly after the ratification of the Nineteenth Amendment and the civil rights movement.