I think data is incredibly powerful for understanding what people are thinking and for allocating resources.

Popularity isn't the end-all, be-all. What matters far more is that you stick to your principles, that you stand up and you live a life of integrity.

I love Texas, I can't wait in a couple of days to be home to the great state.

It took Jimmy Carter to give us Ronald Reagan.

Every candidate is going to come to you and say they are the most conservative person that ever lived.

I think President Obama is the most radical president this nation's ever seen. And in particular, I think he is a true believer in government control of the economy and of our everyday lives. In my judgment, we are facing what I consider to be the epic battle of our generation, quite literally the battle over whether we remain a free market nation.

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.