It would be much easier for me to be so tough - the tougher I am on Russia, the better. But you know what? I want to do the right thing for the American people. And to be honest, secondarily, I want to do the right thing for the world. If Russia and the United States actually got together and got along - and don't forget, we're a very powerful nuclear country and so are they. There's no up-side.

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.

The political establishment has brought about the destruction of our factories, and our jobs, as they flee to Mexico, China and other countries all around the world. Our just-announced job numbers are anemic. Our gross domestic product, or GDP, is barely above 1 percent. And going down. Workers in the United States are making less than they were almost 20 years ago, and yet they are working harder.

Let me tell you who the immigration system in America does not serve. It does not serve you the American people.

We will have a peace dividend to spend on rebuilding America, beginning with our American inner cities. We're going to rebuild them, for once and for all.

I understand China, and I understand the Chinese mind. I understand where they're coming from. They are not our friend.

I wrote 'The Art of the Deal' and numerous other books. Some were number one best-sellers. I guess 'The Art of the Deal' is the best-selling business book of all time.