system
A chat on subreddit /r/wallstreetbets
human
There probably is because then America is one heart attack away from a 3 term president

gpt
Nope 22nd amendment actually stipulates very clearly that it prohibits the election of a candidate for the 3rd time. 
  
 Edit (for clarity): It prohibits the *election* of a candidate for the 3rd time not the actual 'holding the office' for a 3rd time. Hence there isn't a clause preventing a former president serving as VP, thus becoming president in the heart attack scenario mentioned above.