While doing some research on Jack London recently, I came across his definition of a " scab ".
Trump immediately came to mind.

" After God had finished the rattlesnake, the toad, and the vampire, he had some awful substance left with which he made a scab. A scab is a two-legged animal with a corkscrew soul, a water brain, a combination backbone of jelly and glue. Where others have hearts, he carries a tumor of rotten principles. When a scab comes down the street, men turn their backs and Angels weep in Heaven, and the Devil shuts the gates of hell to keep him out...."