We should have never let ISIS happen in the first place. And right now, they're in 32 countries.

You know, the Constitution - there's nothing like it. But it doesn't necessarily give us the right to commit suicide as a country, OK? ... We're not gonna allow the people to come into our country. ... And if people want to come in, there's gonna be "Extreme vetting."

I never knew as bad as it would be. I never knew it would be this vile, that it would be this bad, that it would be this vicious [with Hillary Clinton and Barack Obama].

I don't know, unless you disagree with me, wouldn't it be better, if we were going to go after Mosul, to not say anything and do it as opposed to announcing? They're announcing all over television they're planning to attack Mosul.

ISIS is recruiting through the Internet. ISIS is using the Internet better than we are using the Internet, and it was our idea. What I wanted to do is I wanted to get our brilliant people from Silicon Valley and other places and figure out a way that ISIS cannot do what they're doing.

Hillary Clinton has a bad temperament. She's weak.

[ Tax cut ] will create tremendous numbers of new jobs. But regulations, [Hillary Clinton] are going to regulate these businesses out of existence.