I don't have any direct knowledge, but in the run up to Murtha's exclusive (meaning unchallenged) time on MTP one of the regulars (I'm sorry I forget who) posted that Tony had been turning Russert down, while accepting most of the other invites. They indicated that the Murtha (and then Feingold?) demorat only shows were Russert getting back at the White House for snubbing him.
Again, no direct knowledge, but we don't know for sure who is dissing who here.
Give 'em hell Tony! (always with a smile and a laugh)
Thanks for that information, Phsstpok. I hope in the future Tony accepts and shows Russert to be the partisan reporter that he is.