Fair enough. I see these as the most obvious clowns.

I recall that Carter was annoying as a president partly because he was a micromanager and terrible as a politician. Since the time of his presidency he's been wonderful.

I like J.F. Kennedy very much, but he was a bit of a clown for openly pissing off the wrong people.

Obama's second term was lame, and he screwed up politically in the second half of his first term. So - partial clown.

Clinton's clowning around included the deregulation deals he made with the Repuglicans. Real stupid. Still one of the cleverest political animals to grace the executive branch.