Here’s Jon Stewart mocking MSNBC’s Keith Olbermann over the latter’s comments on Scott Brown. Stewart is clever and funny, as he usually is; but what is most revealing is that Stewart, in attempting to lampoon Olbermann, comes across as far more sane and balanced than Olbermann does in real life. It’s official, then: Keith Olbermann is now beyond satirizing. He has entered territory where almost no man has gone before. And he’s all yours, MSNBC.