Hillary Clinton talks tough against Russia. But our nuclear program has fallen way behind, and they've gone wild with their nuclear program. Not good. Our government shouldn't have allowed that to happen.

One hundred percent. They [Mexico] don't know it yet, but they're going to pay for it. And they're great people and great leaders but they're going to pay for the wall. On day one, we will begin working on an impenetrable, physical, tall, power, beautiful southern border wall.

We're going to fix [trade deals].You know, last year [2015] we lost almost $800 billion in trade deficits. We have trade deficit with other nations of almost $800 billion.

Change your attitude and gain some altitude. Believe me, you'll love it up here.

I didn't need to [run for presidency], but it's about you. It's about bringing our country, making our country great again.

Hillary Clinton`s plan would trigger a constitutional crisis unlike almost anything we have ever seen before. In effect, she would be abolishing the law-making powers of Congress in order to write her own laws from the Oval Office. And you see what bad judgment she has. She has seriously bad judgment.

NAFTA, signed by her [Hillary Clinton's] husband, is perhaps the greatest disaster trade deal in the history of the world.