He's got almost $500,000,000 in PERSONAL debt coming due, a couple hundred million very soon, and based on his tax records, he doesn't have the money to pay that back.
He's got a very serious tax fraud case they've been sitting on because you can't indict a sitting President. Day after inauguration and I'm sure NY will make the criminal charges (the go to prison type of charges) official.
That's just the beginning. People like to say "Russian hoax" but the reason Trump wasn't charged with a crime is, again, because he is a sitting President and Mueller was following his mandate to the letter. Then Barr got inserted just in time so that he could intercept the report and write a summary that Mueller was upset about because he said it misrepresented his findings. But Mueller is a soldier, so he followed his orders. That played out in a particularly awkward way when he was called to testify and was given explicit instructions from Barr that he could only testify to what was specifically in the report. That's why he kept asking for page numbers after almost every question. He was going to provide NOTHING that wasn't in the report. Anyway, it wasn't a hoax and Trump will be eligible for some charges once he's not the POTUS.