We have a lot of politicians who have really small brains and really big hearts.

I think it's a huge mistake. I think regime change in Syria, and this is what - I've been saying this for several years now. In 2013 when we first went in, I said, you are going to give arms to the allies of al Qaida, to radical jihadists? That's crazy.

I think really that you shouldn't run as a conservative if you're not.

We have to decide whether our fear is going to get the better of us. Once upon a time we had a standard in our country that was 'innocent until proven guilty.' We've given up on so much. Now, people are talking about a standard that is 'if you have nothing to hide, you have nothing to fear.' Think about it. Is that the standard we're willing to live under?

I think Saudi Arabia often finances radical Islam and the teaching of hatred to the West and hatred of Americans. I think it is important that we know that. It's important that we know that there is a threat within and a threat without. I think we can stop it with more aggressive use of actual constitutional tools.

There is often variations of evil on both sides of the war. What we have to decide is whether or not regime change is a good idea. It's what the neoconservatives have wanted. It's what the vast majority of those on the stage want.

, I'm going to reserve judgment on [Rex] Tillerson. But I'll ask him the same question I've asked the others: do you understand the historic lesson that the Iraq war was a failure, a strategic mistake, that's what Donald Trump says.