If you look at the polls, for all the talk about immigration and even trade, ObamaCare was an extremely important issue for Trump voters in 2016.

For all the talk about the bitterness and the partisanship in American politics, is it really that bitter and partisan? Think of American history. Think of Joseph McCarthy. Think of the New Left. Think of [George] McGovern. Think of [Ronald] Reagan. Think of George Wallace. We've had an awful lot of real extremism on both wings.

I think that's what's - one of the things that is alarming to me is [Donald] Trump, and I think Trump supporters seem to believe, he won, huge upset, full credit to him, and has got the wind at his back. And Republicans on The Hill do want him to succeed, obviously, and they're deferring to him more than they deep down in private sort of wish - want to, but they are going to defer to him publicly for awhile. But I think that is going to run out faster than people think.

Lest conservatives be too proud, it's worth recalling that conservatism's rise was decisively enabled by liberalism's weakness.

Going from three TV channels to broadcast TV to cable to talk radio; obviously the online explosion has changed things.

You all would be really shocked, if you were dropped back down into when I went to college, by the narrowness of the opinions you could get just by reading newspapers and magazines and watching TV.

The media claimed to be non-partisan, centrist. It's not been that way for a lot of history.