The air strikes are important [to fight ISIS], but we need to have an air force capable of it. And because of the budget cuts we are facing in this country, we are going to be left with the oldest and the smallest Air Force we have ever had. We have to reverse those cuts, in addition to the cuts to our Navy and in addition to the cuts to our Army, as well.

Mitt Romney understands free enterprise, he has worked in it. He has seen companies succeed and he has seen them fail, too. He knows what people think about when they invest their money.

This is the most generous country in the world when it comes to immigration. There are a million people a year who legally immigrate to the United States, and people feel like we're being taken advantage of.

This president [Barack Obama] is undermining the constitutional basis of this government. This president is undermining our military. He is undermining our standing in the world....The damage he has done to America is extraordinary.

We live in a society obsessed with public opinion. But leadership has never been about popularity.

As far as the refugees are concerned, it's not that America doesn't want to accept refugees.t's that we may not be able to, because this is an issue we have to be 100 percent right on. If we allow 9,999 Syrian refugees into the United States, and all of them are good people, but we allow one person in who's an ISIS killer - we just get one person wrong, we've got a serious problem.

Ted [Cruz], you support legalizing people who are in this country illegally.