We have been there for 15 years in the Middle East, and much more than that probably. And we have spent probably $4 trillion, maybe more than that. And it's time to do something about it. And it's time to also knock ISIS out. You got to knock ISIS out.

I will be leaving my great business in total in order to fully focus on running America.

[Hillary Clinton] are telling the enemy everything you want to do.

When a hedge-fund guy gets lucky because the market goes up, and he is going to make $200m, and you know $200 million, and he is going to pay almost no tax. I don't think that is a good thing for the country, and they are all supporting Jeb Bush and Hillary Clinton, all the hedge-fund guys. I don't want their support, because I'm totally self-funding my campaign.

[Hillary Clinton] is also reckless. So reckless, in fact, that she put her emails on an illegal server that our enemies could easily hack and probably have.

The best advice I can give to new parents is to realize immediately that your children will be unique individuals. Give them the space to be themselves and to develop their own personalities and characteristics.

Impulsiveness is not a trait one would choose for a person with the power to launch the U.S. nuclear arsenal.