our "wall street journal" poll taken last month showed joe biden with a seven-point lead. and within the last hour, tlfhe was a morning consult poll that showed joe biden in a contest with bernie sanders and elizabeth warren. this race is becoming more competitive. i agree with cornell completely that one of the big trend lines is elizabeth warren and her steady kbroovrmt improvement in polling, but overall i think you have to say joe biden is still the frontrunner, a very vulnerable frontrunner, and then followed by bernie sanders and elizabeth warren in some type of order. and with the caveat that cornell just mentioned, we have a long way to go until we get to iowa. >> you just cited a range of polling showing some very different numbers, and that is why you guys are always urging people to look at the average.