The New York Times - Week in Review has an article "An Antiwar Campaign That Takes a Page From the G.O.P. Playbook":
Mr. Lamont, a multimillionaire businessman from Greenwich, is by no means a radical. Neither is an insurgent blogger like Markos Moulitsas Zúniga, the founder of Daily Kos. In “Crashing the Gate,” the book he wrote with Jerome Armstrong, Mr. Zúniga says his goal is to advance the cause of the Democratic Party and “rebuild our institutions of power.” Few Democrats differ with him. What does set the insurgents apart is their belief in partisanship. This is the basis of their attack on Senator Lieberman, who, in their view, has failed to be a team player as evidenced by his long history of siding with Republicans and his persistent defense of President Bush.Egregious has Lamont and Wallace dialogue.
Christy has Feingold on This Week.
And the Magazine Section of the New York Times has an article What Are the Lieberman Foes For?
Think Progress has the video up of Feingold on This Week with George Stephanopoulos.
Feingold said this about Lieberman getting out the party:
FEINGOLD: Well, you know, I think that’s his own decision. It would be better for the Democratic Party, I think it would be better for the people of Connecticut, it would be better for the country if he did it. Not because he hasn’t been a good Senator, not because he isn’t a good man, but this is a critical time. And we have to change course. We have to focus on those that attacked us on 9/11 and get away from this very mistaken policy in Iraq. So it would be helpful if he would do it, but obviously Joe will have to make that decision for himself.