If people around the world believe they can just come on a temporary visa and never, ever leave, the Obama-Clinton policy, that's what it is, then we have a completely open border, and we no longer have a country.

We cannot allow a beachhead of terrorism to form inside America. We cannot allow our nation to become a sanctuary for extremists.

I went to great schools. Wharton School, a lot of great places.

Let me tell you about the travel ban. We had a very smooth rollout of the travel ban. But we had a bad court. Got a bad decision. We had a court that's been overturned. Again, may be wrong, but I think it's 80 percent of the time, a lot. We're going to keep going with that decision. We're going to put in a new executive order.

Deals work best when each side gets something it wants from the other.

James Comey better hope that there are no "tapes" of our conversations before he starts leaking to the press!

I think we need somebody absolutely that we can trust, who is totally responsible; who really knows what he or she is doing. That is so powerful and so important. And one of the things that I'm frankly most proud of is that in 2003, 2004, I was totally against going into Iraq because you're going to destabilize the Middle East.