I think Trump, like the rest of us, waaaaay underestimated how many weaselly GOP/RINOs were positioning to stab him in the back. That wasn't clear until the 2020 steal and aftermath.
Getting attacked in your own foxhole has to be dealt with first. Maybe Trump thought he could win over the doubters, naively not recognizing it wasn't doubt but treachery.
4 years He started with “Criminal Hillary” after over a year campaigning calling her that. That should have been day 1 business. He should have interviewed AGs with this question Here’s the file can you indict her? James Comey had already read her crimes on TV and said they won’t indict her. The case was already made in that file.
Biden’s confession at the CFR meeting about threatening the Ukraine if they didn’t stop investigating his criminal kid, was early 18. The dossier was known before that and the FISA wiretap plot by 19.
Biden confesses and brags and laughs about it:
My 4-year old grandson could have indicted him and Hillary and Obama the coup leaders. He knows the bad guys from the good guys.