Trying too hard?

Why are so many comedy types aiming so hard to keep bashing anyone except Obama? I still hear more Bush jokes than Obama jokes and the only thing Obama's really done that he's promised or even arguably 'right' was when he stepped aside and let people plug Osama with some speed holes. It really comes across strained by now. Sort of like either they're trying too hard or not trying hard enough, I can't quite tell. So I'll be honest with you. It doesn't matter who the President is, I'll happily make fun of anything stupid they do and our current one is definitely a walking punchline if the old one was. Good luck with that volt man.