The United States Congress is made up of two legislative chambers – the Senate and the House of Representatives. Article I, Sections 2 and 3 of the U.S. Constitution dictates that representatives – often called members of congress, congressmen or congresswomen – serve two-year terms of office and senators six years. There is no limit to how many terms a representative may serve.
All seats in the U.S. House of Representatives are up for election in November of every even-numbered year. Newly-elected or re-elected members of Congress begin their two-year session the following January. Senate elections are staggered so approximately one-third of all seats are open for election every two-year cycle.
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