Let's Biopsy Ben Carson's Medical Metaphors From the GOP Debate Last Night

A great metaphor is like a brain tumor: it’ll linger in your mind for much longer than it should. (A bad metaphor, of course, is like that too.) And political speech is much like a brain full of brain tumors, i.e. nonfunctional, both in a “metaphorical” sense and a real one. Hey, where’d you go?