1940年, FDR vs. Republican Wendell Willkie, 罗斯福赢; 之后1944年美国总统大选, FDR vs. Republican Dewey, 罗斯福赢。限制总统任期的宪法第二十二修正案是1947年由国会通过的。
“Passed by Congress in 1947, and ratified by the states on February 27, 1951, the Twenty-Second Amendment limits an elected president to two terms in office, a total of eight years. However, it is possible for an individual to serve up to ten years as president.”