the vote on saturday, he is adding events in south carolina as well. hoping to pull off an upset. cnn. charleston, south carolina. >> the director of the center at the university of virginias, good to see you. quickly, the democrat debate tuesday night, let's all beat up on bernie, as it is known, sanders is clearly the front-runner. he is clearly the punching bag. it was the first time he had to answer so many of the same questionsful will this have any impact on the final result in south carolina? >> i think it will have a little impact of these debates throughout this whole process. this is the tenth one. they've actually had some impact on the process. this one, it is hard to believe that it wouldn't hurt sanders a bit with at least the moderates that he continues to attract to vote for him. i don't think they know about his history in foreign policy. but he was lucky. i don't think there was a sustained attack that went from four or five candidates after the first piece of the debate. and bloomberg as always was there to take more than his share of the arrows. >> let's take a look, a close look at that poll which has sanders closing in on joe biden in south carolina.