<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The United States Congress is the bicameral legislature of the Federal government of the United States . The legislature consists of two chambers: the House of Representatives and the Senate . </P> <P> The Congress meets in the United States 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 . Congress has 535 voting members: 435 representatives and 100 senators . The House of Representatives has six non-voting members representing Puerto Rico, American Samoa, Guam, the Northern Mariana Islands, the U.S. Virgin Islands, and the District of Columbia in addition to its 435 voting members . Although they cannot vote in the full house, these members can sit and vote in congressional committees and introduce legislation . </P>

The difference between house of representatives and senate