that they need to relieve their pain or extend the quality of their life? >> and last question very quickly. you said last may that you thought joe biden would make a, quote, great running mate. do you still believe he would make a great running mate? >> i think we have to get past the primary and then we can start talking about running mates and i'm happy to talk to you about it at that time. >> thank you, senator. >> of course she was at the top of the ticket. >> yeah, that was one of it best interviews of kamala harris i have ever seen. putting those answers out of her methodically. kudos to kyung. there's a lot more of that exclusive interview. she of course kamala harris about those racist comments. to see the full interview go to cnn.com/politics. fiend out what democratic candidates will face-off on the same debate stage. tomorrow night watch the draw for our democratic debate.