He could then be President of the United States; he could then be a convicted criminal serving time behind bars; or, given his advanced age, Carroll may be forced to reckon with his estate. Any of these developments could substantially complicate collection efforts here.
I think everyone should be concerned that a guy up to his eyeballs in debt, so far he would not pass a basic security check has a chance to become president.
Or maybe he will then use seal team 6 to take out his lenders.