Then again, this answer might help you...
A United States President may serve no more than two terms in office which is equivalent to 8 years. The exception to this rule is if a person becomes president (due to the death of a current president) and does not serve at least two years, they may go on to serve two terms himself, which would be a total of 10 years.
The only president in history to serve more than two terms was Franklin D. Roosevelt who broke precedent due to World War II.
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