challenged her. the second night harris with the breakout performance. and castro did pretty well. the two front-runners did not emerge as the obvious two front-running candidates. >> yeah. kamala harris, the question for her, how does she keep this alive? after the debate, they had her best fund-raising so far. $2 million raised in 24 hours. 58% of those donations came from new donors. she had a stumble herself about private health insurance saying that she didn't necessarily favor getting -- first she raised her hand about getting rid of private health insurance. but she also supports a national health care plan, essentially medicare for all that would do away with private health care. how vulnerable will that be if she is the nominee? >> that is the problem for all the democratic candidates, to