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.
Confederate States presidential election
Article II Section 1(1) reads: ""The executive power shall be vested in a President of the Confederate States of America. He and the Vice President shall hold their offices for the term of six years; but the President shall not be re-eligible.""