running for re-election and weaver was asked will there be a progressive challenger? yes. john weaver said, jeff weaver says. that's pretty interesting, if weaver thinks someone is going to primary the sitting president. >> yeah, i mean, as you know, john, is it somebody who actually has a chance at making a real dent into joe biden should he choose to run for re-election? or is it sort of a complete sort of fringe left wing kind of candidate that just can't get any traction? not all primaries are equal, except we know this. presidents running for re-election who face a primary challenge from their party tend not to do so well in modern political history. look at jimmy carter when ted kennedy primaried him, look at george h.w. bush, who fended off a primary challenge from pat buchanan. they were one-term presidents. i would just note if you look at where democratic party primaries have gone in the last couple of