I don’t know whether Trump is just stupid, has useless advisers, or just naturally gravitates to other frauds. Vance is the most likely to lose a GE & the most likely to be disloyal should they both be in office together. Mandel, Timken actually believe in Trumpist lunacy, and Gibbons is a Rand Paul type who will go along with the isolationist stuff. Vance quite plainly believes in nothing, he’s like Lindsey Graham. There is literally no upside to this for Trump.
I really believe Mandel actually had the greatest chance of losing an all but impossible to lose race.