We need a much better understanding of the climate before making policy choices that would impose substantial economic costs on our Nation.

We need to do whatever is necessary to utterly defeat ISIS....We're not using our overwhelming air power. We're not arming the Kurds. Those need to be the first steps. And then we need to put whatever ground power is needed to carry it out.

Any country that makes U.S. service members get on their knees will feel the full force and fury of the United States of America.

I believe you [Donald Trump] know politicians better than I do because for 40 years you've been funding liberal Democratic politicians.

The great thing about America is you can live according to your faith. If you're faith says don't use birth control then you don't use it.

If we want to defend the country, we have to defend against who's coming in.

I believe in a America first foreign policy, that far too often President [Barack] Obama and Hillary Clinton - and, unfortunately, more than a few Republicans - have gotten distracted from the central focus of keeping this country safe.