I'm surprised no one else has mentioned it, but MSNBC Hardball host let his distaste for birther Orly Taitz fly freely while talking to Keith Olbermann on election day June 8. If you didn't see it, you have to check out this partial transcript on Newsbusters. Taitz had seemed poised to win the nomination for Secretary of State in California.
Matthews can't shut up, even when Keith Olbermann gives him ample opportunity. I can just see the wheels turning in Olbermann's head, "This guy is going off the deep endâ€”just stop digging Chris." It's the sort of remarkable utterance that happens when familiar people hanging out together forget they are on national television. Sort of like how Carly Fiorina forgot she was on camera the other day, when she was running her mouth.
I can't really say I disagree with Matthews sentiment, but even I would have used different language. Oh well.