Answer:
The Twenty-second Amendment to the United States Constitution was an addition to the United States Constitution that put a limit on how many times a person could be elected to be President. A person is limited to being elected twice - or once if they've already served more than two years as President.
Explanation: I think that they've done this because they don't want people taking over the USA. Some foreign countries like North Korea have leaders that don't serve terms, they stay in office. People in North Korea are starving and dying while Kim Jong Un is very wealthy and living his best life. Yes i agree with the President term so someone we don't like doesn't stay in office and make bad decisions. No offense if you are from North Korea and/or you like that country i was just giving an example and i couldn't think of anything else. Hope this helps! :)