The 22nd Amendment to the US Constitution limits the president to two elected terms in office. This amendment was part of a broader set of 273 recommendations made to Congress by the Hoover Commission, established by President Harry S. Truman to overhaul and improve the federal government. The formal proposal was presented to Congress on March 24, 1947, and the amendment received ratification on February 27, 1951.
This amendment was initiated following President Franklin D. Roosevelt's unprecedented election to four terms, during which he served for 12 years until his death in 1945. In response, Congress proposed the 22nd Amendment to formalise presidential term limits.
Section 1 of the 22nd Amendment: “No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once. But this Article shall not apply to any person holding the office of President when this Article was proposed by the Congress, and shall not prevent any person who may be holding the office of President, or acting as President, during the term within which this Article becomes operative from holding the office of President or acting as President during the remainder of such term.”
Nevertheless, the discussion surrounding term limits continued. According to a report in the New York Times, in 1987, then-President Ronald Reagan expressed a desire to initiate a movement aimed at repealing the constitutional amendment that restricts presidents to two terms. If successful, this could have enabled Reagan — then in his late 70s and a few years away from an official Alzheimer's diagnosis — to seek re-election.