Maybe it's my libertarian philosophy: but being in government is hard.

I think it's critical that we return national security issues to the center of the overall political debate in America.

If a prosecutor in The Hague decides that the U.S. has not followed through effectively on an investigation - is unwilling or unable to carry it through - then that person, that prosecutor, in an unreviewable fashion gets to second-guess the United States? That is unacceptable. That is an assertion of authority over and above the U.S. Constitution.

Texas is a big state. It's a major force in the Republican Party.

Iran has essentially mastered all of the complex science and technology that they need to have a completely indigenous nuclear weapons program. That means that our options on Iran are extremely limited, to regime change or as a last resort, the use of force.

Just like Sept. 11, only with nuclear weapons this time, that's the threat. I think that is the threat. I think it's just facing reality. It's not a happy reality, but it's reality and if you don't deal with it, it will become even more unpleasant.

Everybody pursues their national interests. The only one who gets blamed for it is the United States.