Topic summary
Presidential elector
Extracted from the Wikipedia article United States Electoral College.
Summary
Many states require an elector to vote for the candidate to which the elector is pledged, but some "faithless electors" have voted for other candidates or refrained from voting. A candidate must receive an absolute majority of electoral votes (currently 270) to win the presidency or the vice presidency. If no candidate receives a majority in the election for president or vice president, the election is determined via a contingency procedure established by the Twelfth Amendment. In such a situation, the House chooses one of the top three presidential electoral vote winners as the president, while the Senate chooses one of the top two vice presidential electoral vote winners as vice president.