Republican Congressmen and senators will be in a very interesting place, where they have to support the president-elect - president - what will be President [Donald] Trump when they - when they agree with him, try to guide him in certain ways, I think oppose him on some things.

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.

Mitt Romney has to convince the American public that they need to do something they're not usually inclined to do - replace a sitting president with a challenger. And unlike in 1980 and 1992, when the public was persuaded to do just that, the incumbent president has not been weakened by a primary opponent.

At the end of the day,[Mitt] Romney was pro-life, but [Rick] Santorum was more fervently pro-life, and had been for longer. They're all going to repeal Obamacare, but Romney has once endorsed something like it. In the old days, there really were differences on fundamental issues, even on foreign policy, [for which] [Newt] Gingrich, Romney, and Santorum were pretty similar.

Conservatism as an "ism" is always going to be somewhat in tension with a political party.

Conservatives shouldn't count on the Supreme Court to do our work for us on Obamacare. The Court may rule as it should, and strike down the mandate. But it may not. And even if it does, the future of health care in America - and for that matter, the future of limited government - depends ultimately on the verdict of the American people.

I don't really believe that people read just the stuff they agree with.