The United States Congress has Representatives.
The United States Congress is the bicameral legislature of the federal government of the United States consisting of two chambers : the Senate and the House of Representatives . The Congress meets in the Capitol in Washington , D.C. Both senators and representatives are chosen through direct election , though vacancies in the Senate may be filled by a gubernatorial appointment . Congressional districts are apportioned to states by population using the United States Census results , provided that each state has at least one congressional representative . United States House of Representatives . The House is composed of representatives who sit in congressional districts which are allocated to each of the 50 states on a basis of population as measured by the U.S. Census , with each district entitled one representative .