patrick.net

upisdown says

That has to be one of his 37 kids because Mitt wouldn't pump his own gas or drive himself around, not with all those kids and wives available. I'd bet $10,000 that it wasn't him.

It was one of his many body doubles.

curious2 says

OTOH, he does look crazy enough to be wearing magic underwear

They aren't tight - so they probably ride up during roller coaster rides. That would cause the look on his face - I mean, if he has any balls left after having them removed during the election.