United States Electoral College From Wikipedia – The Electoral College of the United States refers to the group of presidential electors required by the Constitution to form every four years for the sole purpose of electing the president and vice president.
Article II, Section 1, Clause 2 provides that each state shall appoint electors selected in a manner determined by its legislature, and it disqualifies any person holding a federal office, either elected or appointed, from being an elector. There are currently 538 electors, and an absolute majority of electoral votes—270 or more—is required for the Electoral College to elect the president and vice president. Currently, all states (and the District of Columbia) use a statewide popular vote on Election Day in November to choose electors, based on how they have pledged to vote. The electors meet and vote in December and the president and vice president are inaugurated in January. All jurisdictions use a winner-take-all method to choose their electors, with the exceptions of Maine and Nebraska, which use a one-elector-per-district method while also assigning two electors based on the winning ticket of the statewide popular vote.