I don't think the science is clear of what percentage is man-made and what percentage is natural. It's convoluted, for the people to say the science is decided on this is really arrogant, to be honest with you.

To bring about a genuine political realignment, Republicans must kill the Government Goose that Lays the Golden Eggs - the very Goose they have fought so hard and long to possess.

Over a period of time, they [undocumented workers] can have a legalized status that allows them to live a life of dignity but not necessarily a path to citizenship, so as to not create incentives for future people that aspire to come to our country to do so illegally when they could come legally.

We need to embed our forces - our troops inside the Iraqi military. We need to arm directly the Kurds. And all of that has to be done in concert with the Arab nations.

It is a serious undertaking and yes, we do need more fencing and we do need to use technology, and we do need more border control. And we need to have better cooperation by the way with local law enforcement. There are 800,000 cops on the beat, they ought to be trained to be the eyes and ears for law enforcement for the threat against terror as well as for immigration.

The notion that somehow you're going to have freedom just kind of outbreak in Cuba, I think is false.

Half of the interview is substantive and half of it I think is sizing the person up.