harris score, challenging the vice president, remarks that he gave that seemed to speak favorably about segregationist senators, about fighting forced busing. to senator cory booker, that's still fair game. >> did you feel disrespected? >> of course i did. how many times have we all in our lives who are some kind of other dealt with mansplaining or dealt with condemning remarks. and i'm not holding it against vice president biden for saying something bone-headed, we all have. but come forward. why have we created this culture where you can't say you made a mistake? >> claire, he sees it as still an opportunity. and also clear, he's sort of stuck in the middle. and as we go into late in the year, it's a long way until people vote, but the candidates have to make the next round of debates, it's hard to keep a presidential campaign going. is he going to come in more