Pics: How America elects its president ?

The number of electors each state gets is equivalent to the number of members of Congress (House and Senate, together) from the states plus three from District of Columbia. There are, thus, a total of 538 electors. Each state's political parties choose their own slate of potential electors.After the ballot is cast, the vote goes to a state-wide tally. In 48 states and Washington, D.C., the winner gets all of the electoral votes for that state -- which means his or her party's electors in that state will vote in the Electoral College for the winning candidate.