"I know you are, but what am I?" An ignorant buffoon, convicted felon, racist liar, and a bunch of other things, maybe?
I thought it was because Walz kind of looks like the farmer in Bugs Bunny. BTW there is chatter about who will play Walz on SNL. Some names mentioned are Steve Martin and Al Franken, but Franken says he is too thin, lol. The guy with the body for it is Jim Gaffigan, although unclear if he can do sketch comedy.