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

We have zero strategic thinking out of our White House. And we have a national security structure that has lost its way when it comes to strategic thinking and strategic decision-making.

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.

I grew up as a kid with very little. I could enjoy a peanut butter and jelly sandwich or peanut butter crackers.

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.

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

I know Donald Trump as a very adaptive person. In my nearly three and a half decades of being in the military, I've had maybe one, maybe two guys that I've worked for that were that adaptive in combat. He adapts to the great challenges, with his own sort of street smarts and his instincts.