The DSCC is charging that the NRSC (the Republican senate committee) is using a 'race-baiting' ad to shore up Tom Coburn's flagging senate campaign in Oklahoma. Looking at the ad, I think they've got a point. But you take a gander at the ad and make up your own mind. I don't want to, shall we say, prejudice your viewing. But keep an eye out for the racial dimensions of the ad.