The President of the United States can serve only two terms. Why?

What does this answer mean?

A president can serve only two terms because of the 22nd Amendment, which is meant to keep the president from becoming too powerful. USCIS accepts either answer.

The original Constitution set no limit on how many times a president could be elected. For a long time, presidents followed a two-term tradition that started with George Washington, who stepped down after two terms. Franklin D. Roosevelt broke that tradition: he was elected four times, in 1932, 1936, 1940, and 1944.

After Roosevelt, Congress proposed the 22nd Amendment, and the states ratified it in 1951. It says no one can be elected president more than twice. Someone who served more than two years of another president's term can be elected only once.

The idea behind the limit is the same one behind the separation of powers: no one person should hold power for too long. At the interview, the shortest answer is "the 22nd Amendment."