McCain has a new radio ad out that says, "Celebrities like to spend their millions. Barack Obama is no different. Only it's your money he wants to spend."
I think it's safe to say that the Obama campaign hasn't hammered any message as hard as McCain has hammered this "celebrity" attack. Which is funny, because you'd think "McCain is four more years of Bush" would be easier to make stick, and more effective to boot.
And, for what it's worth, it looks like I was wrong about the "celebrity" attack. I thought it was too transparently silly to be usable. These new poll numbers, which show McCain leading by five, indicate otherwise.