Great countries need to secure their border for national security purposes, for economic purposes and for rule of law purposes.

I don't think the science is clear of what percentage is man-made and what percentage is natural. It's convoluted, for the people to say the science is decided on this is really arrogant, to be honest with you.

Barack Obama became president, and he abandoned Iraq. He left, and when he left Al Qaida was done for. ISIS was created because of the void that we left, and that void now exists as a caliphate the size of Indiana.

We're sticky at the ends and the middle is getting squeezed

That, by the way, is perhaps the most ludicrous comment I've ever heard, that climate change is a bigger threat to our country than radical Islamic terrorism.

A third of our kids, after we spend more per student than any country in the world other than a couple rounding errors, 30 percent are college- and/or career-ready.

I think it's very sad that CNN leads Jeb Bush, down a road by starting off virtually all the questions, "Mr. Trump this, Mister" - I think it's very sad. I watched the first debate, and the first long number of questions were, "Mr. Trump said this, Mr. Trump said that. Mr. Trump" - these poor guys - although, I must tell you, [Rick] Santorum, good guy. Governor [Mike] Huckabee, good guy. They were very nice, and I respect them greatly. But I thought it was very unfair that virtually the entire early portion of the debate was Trump this, Trump that, in order to get ratings, I guess.