Many of Bush's defenders have praised him for keeping the country safe since Sept. 11, 2001. He deserves that praise, and I'm perfectly happy to defend most of his surveillance, interrogation and counterterrorism policies against his critics.

I mean, obviously, one of the strongest arguments against evolution and selection of the fittest and progress, which is part of evolution, is the current field of the presidential candidates. We started off with Washington and Adams and Jefferson and then we had Lincoln, and now we moved ahead and look where we are now.

The ObamaCare premiums, the numbers started moving away from Hillary Clinton he moment there was a problem with.

He should release the tax returns tomorrow. It's crazy. You've got to release six, eight, ten years back tax returns. Take the hit for a day or two. He has to give a big speech in defense of capitalism, and that will elevate, I think, this race above this tactical back and forth, which I do think he's on the margin of losing.

In any case, open-seat presidential elections like 2008 just are different in character from incumbent reelects, and I think that's the most important thing about this election - is that once there's an incumbent running for reelection, most of the debate is about, "Has he [Barack Obama] done a good job?" Most of the judgment is, "Do you want to keep him or do you want to replace him?" Now, the opponent has to also be acceptable and has to make his own case.

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.

Many of Bush's defenders have praised him for keeping the country safe since Sept. 11, 2001. He deserves that praise, and I'm perfectly happy to defend most of his surveillance, interrogation and counterterrorism policies against his critics.