Twenty-second Amendment to the United States Constitution
The Twenty-second Amendment (Amendment XXII) to the United States Constitution sets a limit on the number of times an individual is eligible for election to the office of President of the United States, and also sets additional eligibility conditions for presidents who succeed to the unexpired terms of their predecessors.
Twelfth Amendment to the United States Constitution
The experiences of the 1796 and 1800 presidential elections spurred legislators to amend the presidential election process, requiring each member of the Electoral College to cast one electoral vote for president and one electoral vote for vice president. Under the new rules, a contingent election is still held by the House of Representatives if no candidate wins a presidential electoral vote from a majority of the electors, but there is no longer any possibility of multiple candidates winning presidential electoral votes from a majority of electors. The Twelfth Amendment also contained other provisions, lowering the number of candidates eligible to be selected by the House in a presidential contingent election from five to three, establishing that the Senate would hold a contingent election for vice president if no candidate won a majority of the vice presidential electoral vote, and providing that no individual constitutionally ineligible to the office of president would be eligible to serve as vice president.