This is an incomplete list of special elections to the United States Senate. Such elections fill the vacancies that occur when a member of the Senate dies or resigns before the biennial general election which precedes the end of his or her six-year term. Winners of these special elections typically serve the remaining two or four years plus two months of that six-year term. General elections to the U.S. Congress are held in November of even-numbered years. New Congresses convened on March 4 of the following year until 1934. Since 1934, new Congresses have begun on January 3 of the following year.