I get these lightweights like Marco Rubio, he gets up and says'Oh, Donald Trump didn't talk about foreign policy'.

I have never met a successful person that was a quitter. Successful people never, ever, give up!

In the Middle East, we have people chopping the heads off Christians, we have people chopping the heads off many other people. We have things that we have never seen before - as a group, we have never seen before, what's happening right now.The medieval times - I mean, we studied medieval times - not since medieval times have people seen what's going on. I would bring back waterboarding and I'd bring back a hell of a lot worse than waterboarding.

I've taken people and fired them over a period of a year. I've fired them over a period of a month. I've fired them over a period of a day or a week, nice and easy, slow. The one thing that a firing always has in common is the next day they wake up and they hate Donald Trump, no matter how nice you are.

We owe $20 trillion, and we're a mess. And we've spent $6 trillion in the Middle East, according to a report that I just saw.And it's politicians like Secretary [Hillary] Clinton that have caused this problem.

The establishment has trillions of dollars at stake in this election [2016]. As an example, just one single trade deal they'd like to pass involves trillions of dollars, controlled by many countries, corporations and lobbyists.

I can be the most presidential person ever, other than possibly the great Abe Lincoln, all right?