The United States presidential election of 2008, scheduled to be held on November 4, 2008, will be the 55th consecutive quadrennial election for president and vice president of the United States. There also will be elections for all 435 members of the U.S. House of Representatives and elections for 34 members of the United States Senate. As laid out by the United States Constitution, the individual who receives a majority of votes for president in the Electoral College — 270 votes are needed for a majority — will be the 44th president of the United States, and the individual who receives a majority of electoral votes for vice president will be the 47th vice president of the United States. If no one person receives a majority in the Electoral College at that time, then the president-elect will be selected by a vote of the House of Representatives, with each state receiving a single vote. If no vice presidential candidate receives a majority, then the vice president-elect will be selected by a vote of the Senate. These situations, however, have not occurred since 1825 and 1837, respectively. As in the 2004 presidential election, the allocation of electoral votes to each state will be partially based on the 2000 Census. The president-elect and vice president-elect are scheduled to be inaugurated on Tuesday, January 20, 2009.