We're looking at a president [Barack Obama] who's engaged in double-speak where he doesn't call radical Islamic terrorism by its name. Indeed, he gives a speech after the San Bernardino attack where his approach is to try to go after the constitutional rights of law-abiding citizens rather than to keep us safe.

We need a president who understands the first obligation of the commander-in-chief is to keep America safe. If I am elected president, we will hunt down and kill the terrorists. We will utterly destroy ISIS.

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.

It's going to take a new generation of courageous conservatives to help make America great again.

I promise you, Donald [Trump], there's nothing about you that makes anyone nervous.

I'm a big believer that good policy is good politics. And so, when it comes to making decisions on policy issues, what I endeavor to do is simply speak the truth.

What data can tell you is if you have 10 messages, all of which you believe, it can tell you which messages are resonating and which aren't. And if you break it down even further, the truth of the matter is some messages resonate one place and other messages resonate another place.