*Ron Paul doesn't go the gym. He stays fit by exercising his civil rights.
I thought that one was really funny.
EDIT: you know, it's really amazing to me how important TV advertisements are to the American public. They're insignificant in Dutch politics. It's much more important here to simply be seen on independent TV shows and in the newspapers. They do run advertisements, but they're usually crammed into tiny "political message" time slots, which are equally distributed to the contesting parties.
Last time we had elections, there was one party (the VVD, a liberal party that suffered huge losses) that took a large TV advertisement offensive, showing about three per commercial block. It gave them absolutely nothing.