who elect the president of the united states
President-elect of the United States No constitutional provision or federal law requires electors to vote according to the results of their state's popular vote, though some states bind their electors to their pledges by state law. Historically, there have been only a few instances of "faithless electors" casting their ballots for a candidate to whom they were not pledged, and such instances have never resulted in changing the final outcome of a presidential election. The popular vote does not declare the presidency but the Electoral College vote does. Even if the popular vote goes to one candidate, another may win the electoral vote and the presidency, as has happened in 1876, 1888, 2000 and 2016.