Who appoints the electoral college?
Electors of the Electoral College in the United States are chosen by the respective political parties. The actual process varies from state to state.
Electoral college members are known as electors. They are elected by the voters, not appointed. When people vote for president, they actually vote for the electors that are pledged to vote for their choice of candidate. Candidates for electors are chosen by the parties in ways similar to the way they choose delegates to the national conventions. They are people who have achieved senior status in the state party organization.
Only the votes of the electoral college ultimately matter in US presidential and vice presidential elections. However, every state appoints electors who are supporters of the winners of the popular vote within their state. The only reason that the popular votes from all of the states are added together is because the results are interesting.