The 12th Amendment introduced a number of important changes to the procedure. Now, electors do not cast two votes for president; rather, they cast one vote for president and another for vice president. In case no presidential candidate receives a majority, the House chooses from the top three (not five, as before the 12th Amendment). The Amendment also requires the Senate to choose the vice president from those with the two highest figures if no vice presidential candidate receives a majority of electoral votes (rather than only if there's a tie for second for president). It also stipulates that to be the vice president, a person must be qualified to be the president.