so let's talk about all of this with amy stoddard, associate editor and columnist with "ab politics."re eyeing this. there are some who have already qualified and some just hoping that they can. if they don't, is that it? are they done? >> i think in a normal year, you definitely need to make that last debate, no question. there is something about this race that is very unsettled, i think. i don't see a lot of coalescing going on. maybe it was fluid back then, too, in different cycles, but i wouldn't be surprised if you have someone that has a passionate following like cory booker and they don't make the debate stage and they're caucus says, are you kidding me? i'm going to redouble my efforts and run around like crazy. in iowa people were saying it's got three places. now people are saying maybe it has four. i don't think we know yet what iowa, how it's going to matter, if we're going to split victories across iowa, nevada, south carolina, new hampshire. people are talking about a brokered convention. i don't know yet that we're going to determine a momentum in the days following tha