Chris Matthews: Drunk or Retarded

There are many visitors to this blog who are much smarter than me, so I wonder if some of you can explain what the hell is wrong with Chris Matthews?

You can follow the link below for details, but here is the relevant quote:

CHRIS MATTHEWS, MSNBC: "Yeah, but he says his wife knew. He laid it out on her."

JOHN FEEHERY, Republican strategist: "Which is a terrible, terrible mistake."

MATTHEWS: "Well, maybe she's partly responsible if she knew about it?"

RealClearPolitics - Video - Chris Matthews On Weiner's Wife: "Maybe She's Partly Responsible"

Its' one thing for Anthony 'Hey, wanna see me Twitter my crotch around the world?' Weiner to try to somehow blame his wife for his indiscretions and low character--the guy has shown himself to be a dishonest, dimwitted cretin, an empty suit of a politician worthy of the Age of Obama--but shouldn't a journalist like Matthews be just a tiny bit smarter?

Is there something I'm missing? Is Matthews retarded, does he go on the air drunk, or is there some other malfunction coming into play here?

Is that his knee, or is Anthony Weiner just happy to be here?