You probably haven't heard much about South Carolina Democratic gubernatorial candidate Vincent Sheheen of late for one simple reason: He has virtually no shot of unseating incumbent Gov. Nikki Haley. But now Sheheen has become a headache for Democrats nationally after calling Haley a "whore" on the stump.

During an appearance in Florence, Sheheen said, "we are going to escort whore out the door," and then corrects himself. If you watch the video, it was clearly a slip of the tongue. He obviously meant to say "her." Yet his almost gleeful interactions with the crowd after the gaffe were not an accident. He later apologized, but, in the moment, Sheheen made no attempt to correct course and, in fact, laughed at his gaffe.

Ann Romney, who is one of Haley's biggest champions, told CNN that the comment "hit me right in my gut." She added: "We need to make sure we have a safe place so that other women can feel like they can do this and these kinds of things aren't going to happen to them. You get so sick of saying there is bias out there, but if a Republican had said this, it would be blowing up in their face like nobody's business. Where is EMILY's List? Where is NOW? Where are they?"

Romney's critique is part of a broader pushback by Republicans against the idea that the GOP is at war with women, a claim, they insist, is a Democratic talking point with little recent evidence to back it up. Sheheen's reaction to his slip-up certainly provides fodder for the Republican argument.