That's the Wanda Sykes joke from the White House Correspondents' Association dinner. I'm sure Rush is chortling as he prepares his opening monologue for today's radio show, which will have more than the usual number of listeners. He'll be all why are they always talking about me? and loving it.
I'll update this post when the show starts.
UPDATE: Sorry, I had a computer problem at the beginning of the show. Later, he was talking about Dick Cheney and then Nancy Pelosi — on the torture topic. Did he start with Sykes? I'm guessing he didn't now.