Just jumping into this thread now, so if this was brought up, apologies:
Some Presidents have bona fide and accepted nicknames or monikers. Some good, some snarky.
Reagan - The Gipper
Clinton - Slick Willy
Bush the 2nd - Dubya
Lincoln - Honest Abe
Ann Veal - HER?!
Ford - The Accidental President
Eisenhower - Ike
I like "The Illegitimate President" for Trump.