donor said the former vice president didn't bring it up but made a joke when people attack him, it doesn't turn out that well for them. but, jake, the question is, how well will it turn out for joe biden. he's still leading this race but he had some challenges as well last night. >> he sure did. jeff zeleny, thanks so much. let's chew over this and angela, i'll start with you. i've seen a lot of criticism of vice president joe biden over this exchange. >> what responsibility do you think that americans need to take to repair the legacy of slavery in our country. >> well they have to deal with the -- look, there is institutional segregation in this country. and for the time i got involved i started dealing with that. red lining banks, making sure we're in a position where -- look, you talk about education. >> we bring social workers into homes and parents to help them deal with how to raise their children. it is not they don't want to help. they don't know quite what to do. play the radio. make sure the television -- excuse me make sure that you