While Mitt Romney and Newt Gingrich were duking it out on CNN last night, Bill O’Reilly moderated a debate of his own, over MSNBC analyst Pat Buchanan‘s removal from the network. MSNBC president Phil Griffin is keeping Buchanan off the air due to the nature of his book, Suicide of a Superpower.

O’Reilly had on Washington Post Magazine contributing editor Cathy Areu, who called Buchanan “a white extremist” and says he should be fired, and Fox News contributor Sandy Rios who defended Buchanan’s right to write, and say, what he wants.

It also gave O’Reilly a chance to go after MSNBC: “If the litmus test is you fire extremists, MSNBC would have nobody on. Nobody on!” said O’Reilly to Areu. “They’re not extremists over there?” O’Reilly asked rhetorically. “Do you watch the network?”

(h/t J$P)