That said, politicians have to be careful about humor. Most stick to self-deprecating humor so no group can claim offense to their jokes. You notice Obama's ego won't let him do that, which is why his attempts at humor are so not funny.
Obama not funny? Don’t be ridiculous, how much funnier can one man be? Unintentionally funny that is, without meaning to he reaches heights of absurdity unimagined by Monte Python.
http://www.youtube.com/watch?v=ap2Cg_FDRy4