You have to master not only the art of listening to your head, you must also master listening to your heart and listening to your gut.

Hillary Clinton and Barack Obama are responsible for the growth of ISIS because they precipitously withdrew from Iraq in 2011 against the advice of every single general and for political expediency.

We also know that ISIS is recruiting who are not in those databases. So of course, we're going to miss them. And then we now learn that DHS says, "No, we can't check their social media."

I have advocated for rolling back regulations, simplifying the tax code and moving to zero-based budgeting - policies that will support small businesses and raise up the middle class.

If Hillary Clinton had to face me on a debate stage, at the very least, she would have a hitch in her swing.

If you have a line of business - I know this as a CEO - or if you have a teenager - I know this as a parent - who have a spending problem, what do you do? You quit giving them money.

As president, I will stand up to the great human rights tests of our time - in China, Russia, and the Middle East. We must send a signal to our allies and adversaries that America is back in the leadership business.