To those who say climate change is not caused by human activity or that addressing it will harm the economy, let's encourage them to go to college, too, and to study physics and to study economics, but for the rest of us, let's get to work.

His problem, is that the other side of Lindsey Graham is that he's known as sort of, I don't know, a moderate, an accommodationist.

Look, being president of the United States is the toughest job in the world and I can tell you, as someone who has worked with Secretary Clinton and competed against her that she is a tough person who is ready to do this job.

Progress is a choice. Job creation is a choice. Whether we give our children a future of more or a future of less - this, too, is a choice.

Busy souls have no time to be busybodies.

We are going to be able to defeat ISIS on the ground there, as well as in this world, because of the Muslim Americans in our country and throughout the world who understand that this brutal and barbaric group is perverting the name of a great world religion.

I believe keeping families together is in the best interest of the United States. And in the past the level of deportations, and the mindlessness with which they've been carried out, that's hurt the United States.