Markos Moulitasa Zuniga, the blogger behind Daily Kos, wants to boot out the "ineffective" Democratic Party establishment. We talk with one of the most popular progressive bloggers about his vision for a new movement: one "of the netroots, the grassroots, the unorthodox labor unions, the maverick big donors."

Plus, conservative author David Horowitz debates Mark LeVine, who he calls one of the "most dangerous professors in America." Horowitz's new book attacks the dominance of progressives in academia, which he says "can only be explained by a political black list."

Also, Peter Laufer, author of "Wetback Nation," makes a case for completely opening the U.S.-Mexico border. Filmmaker Mark Manning tells us about "Caught in the Crossfire," his new movie that looks at U.S. troops' raid on Fallujah through the eyes of city's civilians. And political comic Will Durst takes a parting shot at Tom DeLay.

Web-only bonus content: Click here to hear the full, un-edited, 30-minute discussion between Horowitz and LeVine.