While GOP insiders think the presidential field is pretty well set, here’s one possible wildcard: Rep. Thad McCotter of Michigan is considering a quixotic jump into the race. McCotter is very, very conservative. He’s also mildly crazy. Not Michelle Bachmann crazy, exactly. There’s a real eloquence about him. He’s given to Shakespearean language in his floor speeches. But he’d be very entertaining. Think of him as a slightly less batshit Bob Dornin, for those of you who remember ol’ B-1 Bob.