shows joe biden holding on to his lead. let's discuss now. frank bruni is here, abby phillip, ryan lizza as well. look at those attractive faces right there. and you should see their brains, really smart people. so let's see if they're as smart as we think they are, as i just said they are. good evening to all of you. frank, i'm going to start with you. the 2020 dems on the debate stage tomorrow night. tell me what's at stake. >> well, i mean a lot's at stake for all of them because for starters, joe biden's lead, you mentioned, endures. i mean he's ahead in your poll. but it's not the lead he once had, and i think it's a soft lead. i think a lot of eyes will be on elizabeth warren because she has had a great last couple of months. she seems to have a lot of velocity, and the question is whether she can convert that into actually catching joe biden and what their exchanges will be like. this is the first time that warren and biden have been on the stage together. as we've gone through this, there's been a split group. now we have the ten leaders all on the stage together, and it's the first time that warren and