Trump causes a stir at NABJ conference questioning Kamala's race, does this help or hurt him?

Dan gives Donald Trump immense credit for going into a predictably hostile environment at the National Association of Black Journalists conference in Chicago, but marks him down for comments questioning whether or not Kamala Harris is black. This lack of discipline may very well cost him down the stretch toward the election in November. But could it actually turn in his favor?See omnystudio.com/listener for privacy information.