ISIS says they want to go back and reject modernity? Well, I think we should help them. We ought to bomb them back to the Stone Age.

Any time some politician tells you it's not about the money, it's about the money.

If as a voter you think what we need is more Republicans in Washington to cut a deal with Harry Reid and Nancy Pelosi and Chuck Schumer, then I guess Donald Trump`s your guy.

One of the most troubling aspects of the Rubio-Schumer Gang of Eight Bill was that it gave President [Barack] Obama blanket authority to admit refugees, including Syrian refugees without mandating any background checks whatsoever. Now we've seen what happened in San Bernardino. When you are letting people in, when the FBI can't vet them, it puts American citizens at risk.

I introduced bill saying we need more security, we need more scrutiny. Once again, Marco [Rubio] opposed this. So Marco can't have it both ways. He thinks he wants to be this, "Oh, I'm great and strong on national defense." But he's the weakest of all the candidates on immigration. He is the one for an open border that is leaving us defenseless.

I will sing their praises, I'll sing Donald's [Trump] praises and Marco's [Rubio] praises and everybody else's praises. But I'm going to keep the focus on substance and records. And there's a reason why they scream "Liar." Because when you point to their own records, their own voting records, their own words, they don't like their records because their records are inconsistent with what they're running on.

There's a real danger when people get distracted by peripheral issues. They get distracted by democracy building. They get distracted about military conflicts. We need to focus on defeating jihadism.