His followers tend to disbelieve truth if even it hits them in the face. The Covid hoax claims and the subsequent death toll as a result of that idiocy would finish off a leader in most civilised countries. And that's just one grain of sand on a very long beach....
He's a brilliant salesman for those lacking critical analysis. A billionaire that rednecks support thinking that he has their best interests at heart. As for draining the swamp....