Every four years, on Election Day, (Tuesday after the first Monday in November), registered *voters in the United States cast their votes for presidential electors. Collectively, these electors form the Electoral College. The number of electors per state is equal to the number in its Congressional delegation. Thus, each state has at least three electors. Kansas has six electors and Missouri has eleven. These electors meet on the first Tuesday after the second Wednesday in December to elect the President and Vice-President.
In 1845, Congress established Election Day in response to abuses caused by the previous system of electing the President and Vice-President. Under the old system, states could appoint electors at any time within 34 days prior to the convening of electors in December.