http://slatest.slate.com/posts/2011/..._allegati.html
The exchange between Cain and a supporter occurred at a campaign stop in Michigan, and was caught on camera by Fox News, which first aired it on Thursday Night.
Real Clear Politics has the video
here. In it, a member of the crowd mentions Hill to Cain, who responds: "Is she going to endorse me?" It is difficult to make out the supporter’s original comment, but it prompted a hearty round of laughter from those in the room, including Cain, which continued after the candidate made his follow-up joke.