But, frankly, to try to create some sort of a religious standard in terms of who can come to America, we're a melting pot. And as long as people have positive and good intent, they ought to be able to come.

People are beginning to understand my vision and my message because finally people are beginning to allow me to be heard.

These are serious matters, and we can never let up on these sanctions [against Russia].

No one ever expect me to get in the race. They didn't think I would get on the debate stage. I did. They didn't think I'd do well in New Hampshire. I finished second. And so we went to South Carolina. In a short period of time later, two weeks ago people in South Carolina had no clue who I was.

The role of money in politics is terrible, particularly when you're running for president. You get a handful of billionaires who can basically buy the White House.

The foreign policy, you have to know how to pick and choose. There's no way, if Saddam [Hussein] had not had weapons of mass destruction, I would have gone, because I don't believe that the U.S. should be involved directly in civil wars.

I've been frankly very surprised at the intensity of our differences [with Russia]. I mean, between what appears to be hacking of our political system to the aggressive use of nukes on the borders, to these atrocities in Syria and their warnings. I've been very, very surprised at the intensity of all this.