The term of the President of the United States is four years, as specified in the Constitution. The President can serve a maximum of two terms, as per the 22nd Amendment to the Constitution, ratified in 1951. This amendment limits the President to two four-year terms, preventing any person from being elected to the office of the President more than twice. The President is responsible for the execution and enforcement of the laws created by Congress and is both the head of state and head of government of the United States of America.