If her interruptions interview of Liz Cheney about interrogation wasn't enough to show her true colors, she was just on MSNBC fretting about just how loyal a Democrat Arlen Specter might be.

Interviewing Pennsylvania Gov. Ed Rendell about whether he had made a deal with Specter to clear the Democratic primary field for him, O'Donnell used David Broder's Specter column as a jumping-off point:

So, once again, Specter is likely to reap political rewards from his maneuvering. But the Democrats should be open-eyed about what they are gaining from his return to his original political home.

Specter's history shouts the lesson that he will stick with you only as long as it serves his own interests -- and not a day longer.

O'Donnell: "So, Governor, why should we clear the field for him if he's about political opportunism?"

At the risk of offending Native American tribes of the Central Algonquian language family, "Who is this 'we' you speak of, Kemosabe?"

Rendell assured the impartial reporter that Specter could indeed be counted on to vote for much of Obama's agenda (whew!), and that he had made no deal with Specter about clearing the field. "If he had asked, I would have said, 'I'll do my best,' but Arlen Specter didn't make a deal."