During a panel this afternoon in Denver about media coverage of the presidential campaigns, NBC's Tom Brokaw found himself defending MSNBC, once again. Politico's Michael Calderone attended the panel which was moderated by PBS' Judy Woodruff with participants Brokaw, ABC's George Stephanopoulos and CBS's Bob Schieffer.

Also in attendance, Pennsylvania Gov. Ed Rendell, who supported Hillary Clinton in the primary. Rendell and Brokaw began debating NBC's campaign coverage, including the comments by correspondent Lee Cowan as well as MSNBC.

"MSNBC was the official network of the Obama campaign," Rendell said, who called their coverage "absolutely embarrassing." Chris Matthews, Rendell said, "loses his impartiality when he talks about the Clintons."

Brokaw responded saying Matthews and Keith Olbermann are "not the only voices" on MSNBC.

> More: FishbowlNY's Glynnis MacNicol also attended the panel and writes, "Stephanopolous is the most defensive of the three in terms of the job the press has done..."