Twenty-second Amendment to the United States Constitution
The amendment prohibits any individual who has been elected president twice from being elected again. Under the amendment, an individual who fills an unexpired presidential term lasting greater than two years is also prohibited from winning election as president more than once. Scholars debate whether the amendment prohibits affected individuals from succeeding to the presidency under any circumstances or whether it only applies to presidential elections.
Article Two of the United States Constitution
Section 1 of Article Two establishes the positions of the president and the vice president, and sets the term of both offices at four years. Section 1's Vesting Clause declares that the executive power of the federal government is vested in the president and, along with the Vesting Clauses of Article One and Article Three, establishes the separation of powers between the three branches of government. Section 1 also establishes the Electoral College, the body charged with electing the president and the vice president. Section 1 provides that each state chooses members of the Electoral College in a manner directed by each state's respective legislature, with the states granted electors equal to their combined representation in both houses of Congress. Section 1 lays out the procedures of the Electoral College and requires the House of Representatives to hold a contingent election to select the president if no individual wins a majority of the electoral vote. Section 1 also sets forth the eligibility requirements for the office of the president, provides procedures in case of a presidential vacancy, and requires the president to take an oath of office.