22nd Amendment

The Twenty-second Amendment to the United States Constitution limits a president to two terms in office, with the exception of filling an unexpired term lasting more than two years. The amendment was ratified on February 27, 1951, after Congress approved it on March 21, 1947, in response to Franklin D. Roosevelt's unprecedented four terms as president. The amendment prohibits anyone who has been elected president twice from being elected again, and scholars debate whether it applies to succeeding to the presidency under any circumstances. The two-term tradition was established by George Washington, who decided not to run for a third term in 1796, and was followed by several subsequent presidents, including Thomas Jefferson, James Madison, James Monroe, and Andrew Jackson.learn more on wikipedia