For how many years is a U.S. Senator elected?

A U.S. Senator is elected for a term of six years. This duration is established in the U.S. Constitution to ensure that Senators have a longer tenure than members of the House of Representatives, who serve two-year terms. The six-year term allows Senators to take a more long-term perspective on issues, as they do not have to face re-election as frequently. It also contributes to the stability and continuity of the Senate as a legislative body.

Each Senator's term begins on January 3 following the election, and elections for Senate seats are staggered, meaning approximately one-third of the 100 Senate seats are contested every two years. This staggered system is designed to maintain continuity within the Senate, which is considered critical for effective governance.