I believe there's a diseased component inside the Islamic world, the Muslim world, absolutely. It's like a cancer and it has metastasized and grabbed hold in a much bigger way, and it's because we, have tried to be, globally, tried to be so political correct.

This [U.S.] bombing in Libya. So what are we doing in Libya? We just dropped some bombs on someone who we found is a leader there, maybe we killed some group attending a leadership meeting. Does this mean the problem is going to go away? No. It means we're going to have worse guys.

NATO was formed post-World War II. We're a little bit more than a half-century old. Do we want NATO to go on for another half-century? I think that the answer is, sitting here today: I don't know. If I had to bet on it, I would say, yeah, we have to have these alliances going forward and see who's going to pay for them.

You look at Libya, and you go, "Jesus, why the hell did we do that?" That's beyond stupid. That's so irresponsible and dangerous for our national security and frankly for the national security of Europe because you go and you look at where a lot of these refugees are coming out of, they're coming out of Misrata and Tripoli.

When you look back, history is not going to be kind to these last 16 years from 2000 to 2016.

Russia ought to get Iran to back out of the proxy wars they are involved in.

One of the things I learned was that Putin has no respect for the United States leadership. Not for the United States, but the leadership.