this year, they're coalescing around one goal and one goal only, to defeat donald j. trump. what we have now is a front-runner embracing that in spades. joe biden's campaign ad in iowa underscoring this bottom line. >> we know in our bones this election is different. the stakes are higher, the threat more serious. we have to beat donald trump. all the polls agree joe biden is the strongest democratic to do the job. >> candidate b, his buy, jill biden, what might seem spontaneous with the same moment. >> your candidate might be on healthcare than joe is. you have to look at who's going to win this election. maybe you have to swallow a little bit and say, i personally like so-and-so better, but your bottom line has to be that we have to beat trump.