Massachusetts Senator Scott Brown has been running away from the prospect of debating Elizabeth Warren for a while now. But he's finally agreed to a debate, with one little condition:

Sen. Scott Brown announced today that he will accept an invitation to debate Elizabeth Warren at the Edward M. Kennedy Institute in Boston, but only on two conditions — one of which is that MSNBC, which is scheduled to host the debate, must drop out as a sponsor.

In a letter to the Kennedy Institute, campaign manager Jim Barnett wrote that while it was OK with the moderator, NBC's Tom Brokaw, it could not accept a network "with a reputation for political advocacy."

On the one hand, the mind reels with Fox News punchlines on reading that last line about political advocacy. On the other hand, I can't help but wonder: What would happen if Democrats started doing this with Fox News? Should they start refusing to take part in Fox News-sponsored debates?