zach nunn joins me now. congressman, happy 4th of july. was responding to a hypothetical question and says he supports the biden/harris primary. what would that look like? >> carley, happy independence day. you are right, we're in a situation where we could end up with a harris presidency, which is more frightening than a biden presidency. get back to chicago 1968 rule, what happening to the democrats party, kennedy made johnson bow out. clyburn is right, democrats are seeing this in congress and spoke to me about this. several think president biden will no longer be the nominee and are ready for prestrump to . harris is dafrnl to democratic party and would be far worse leader in the white house. >> carley: what are democrats saying about this? would you say swing state democrats are most worried? >> i'm in a very competitive district in des moines, iowa. democrats i've worked with and known for a long time see red lights flashing everywhere. they lose white house this go around and will lose down ballot races across the way, they will los

zach nunn is district 3 in iowa. still looking for district 1. peter baker, what happens if joe biden steps aside? what are the options on the table? >> a couple options. first of all, we're assuming he stays in office and he doesn't resign the presidency, which in which case kamala harris would become the incumbent. most likely is he would step aside as a candidate and say he wants to finish out his term and say he wants to focus on world affairs and turn the race over to someone else. the question is, does he anoint harris kaup as his successor? he appointed her. there's a concern pretty cat there. if he did that, i think it would be very hard for any other democrat to take the nomination away from her. if he doesn't do that, if he says it's a jump ball, let them all compete and see who does well, then obviously it's -- kamala harris starts off with an advantage as incumbent vice president but there's a number of other candidates who might jump in. not only is the convention next month, but they have to do their virtual roll call by august 7th