Why do Christians support Trump?

[Keith&Co.]

... it becomes obvious that he's been chosen by God Himself.

I wonder if Trump's going to try to show Stigmata when Mueller is about to finalize his report?

Of course, he's not the showman he thinks he is, nor is his staff inclined to second check anything. He'd probably bleed from the elbows and knees.
Or he'd show his bleeding palms to the cameras, then wipe them off on the podium.

And Trumpers would all channel Self-Mutation in his defense. "Of course the wounds did not persist! Then you'd have doctors and atheists all trying to examine the wounds and pronounce them fake. God healed the wounds so that no one could prove they weren't miraculous injuries, with equally miraculous healing!"