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.

Foreign policy is about US national security, it is definitely not non-intervention. It is definitely not isolationist. That's where people want to hear what they want to hear and not listen to what Donald Trump says. It is about national security for the United States, and that's fine.

Donald Trump is a great listener, and he's a good challenger. He doesn't come across as a person who thinks he knows it all. In fact, he once told me he has had lot of things to learn.

The threat of nuclear warfare is very, very low. Trump is no fool, and he sees the world as a globalized world.

Egypt is going to be, potentially, a failed state if we don't help them.

I would have preferred to capture bin Laden and expose how he uses Islamic ideology for his own purposes.

I think that [Obama] sees the military actually as something that is more dangerous to the world. I think that he looks at the United States military and sees it as a threatening application around the world than actually as a useful tool.