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.
Twentieth Amendment to the United States Constitution
of the Constitution states that Congress must meet at least once per year, on the first Monday in December, though Congress could by law set another date and the president could summon special sessions. The original text of the Constitution set a duration for the terms of federal elected officials, but not the specific dates on which those terms would begin or end.