McCain looked like a piece of chalk, shuffling around the red-carpeted stage, a grumpy old man armed with a double-barreled shotgun surveying his property, Elmer Fudd "hunting wabbits." The cartoon character, who sings, "kill the wabbit, kill the wabbit, kill the wabbit," aims to shoot Bugs, but ends up seriously injuring himself.

"This is a guy who sang, bomb, bomb, bomb Iran, who called for the annihilation of North Korea. That I don't think is...