I think it's important for Americans to try to understand each other a little better.

Ideology knows the answer before the question has been asked. Principles are something different: a set of values that have to be adapted to circumstances but not compromised away.

The literature of the Spanish Civil War is also important to me. Above all George Orwell's "Homage to Catalonia" as well as the writing of John Dos Passos and Ernest Hemingway. They worked on a film together in Spain during that war, which ended their friendship.

I don't know how we continue to do politics in a democracy if we simply can't listen to one another, if we simply close the door and say you are beyond redemption.

We focus on that really repulsive minority of racists. But then there's a continuum that goes all the way to, you know, what used to be called the white backlash or to, you know, the feelings of some white people that they're losing out and that the jobs and power and sort of the culture is drifting away from them and toward people who don't look like them, who don't - who they don't know very well. And that's not necessarily - I don't equate that with the hardcore ideological hatred of self-identified racists.

I think in the '50s, the percentage of Americans employed by the private sector who were in unions was above 30 percent. And now it's in the single digits, so it plummeted. And with the plummeting of unions came the weakening of an organized working-class voice in politics.

Playing to resentment and using a lot of, you know, grand abstract phrases like make America great again is - it just doesn't have the answer. It's simply a way to whip up emotion and then leave people more bitter than you found them.