I think you are right, and if Nixon had not been pardoned, he may have spent some time in jail.
Wikipedia - List of American federal politicians convicted of crimes
https://en.wikipedia.org/wiki/List_of_American_federal_politicians_convicted_of_crimes
I’m thinking that the long-awaited decision on Liar HilLIEry will have to come B4 jug-ears leaves, so he can conveniently pardon her sorry @ss.