metaphorical, of course, at the time, speaking about divides in terms of race and gender and religion. now, his successor is a man who has largely run on the promise to erect a huge wall between the united states and mexico. >> i think that might be a sobering memory, actually, for many democrats, who remember those speeches from obama and not just in berlin but also in boston in 2004. he actually underestimated the power of partisan politics and the direction the party took. democrats won't agree with some of his message tonight. they don't think this is a normal transition of power. they think that some of the things that came out in donald trump's campaign are beyond the boundaries of permissible. they'll have trouble compromising with this. i think he's sensing this and trying to calm some of the tensions in the party. >> to that point, let's listen to what he said about giving donald trump a hearing, as he put it.