One must assume that President Trump has seen “The Wizard of Oz.” Everybody has, but Trump evidently has one scene in mind. The scene where Dorothy throws water on the witch, and she melts.
It’s bad enough to suspect that you are, in fact, a witch, even as you warn daily about hunting them. What witch wouldn’t? But it’s not just the bucket of water that Trump is wary of. It’s the reaction of the Winkies, the witch’s palace guards: “Hail to Dorothy, the wicked witch is dead!”