NBC's David Gregory "Partisan"?

It's not enough that most of the MSM are nothing more than shills for the Bush administration, now they have taken to attacking one of their one of their own. If anything, David Gregory of NBC strikes me as hardly being either a progressive or a liberal. However, simply because he had the audacity to ask if the ISG report was "a rejection of this president's handling of the war", numerous conservative media figures attacked Gregory, calling him "angry," "partisan," "grouchy," and "ignorant," and claiming that he is "doing this for personal gain." Media Matters has the story.