 California Congressman Adam Schiff has also endorsed Harris. CBS's John Dickerson says the vice president still has lots of work ahead. The first thing that the vice president has to do is integrate herself into a campaign structure. And that's different when you change players in the middle of a game. It's just tricky to get yourself into the new system. Who do you trust? Who do you give decision-making power to? Then she's got to lock down the nomination and do it in a way that doesn't bruise those feelings. It brings in people who might have not liked the way this happened.