The front line with ISIS isn't just in Iraq and Syria, it's in Kennedy Airport and the Rio Grande. Border security is national security.

I think what Republicans want is someone who will stand up and lead, who will take on the great challenges of the day, who will make the case that the path we're on isn't working; that the Obama-economy is a disaster, that Obamacare is a trainwreck, that our constitutional rights are under assault and that we need to restore America's leadership in the world.

We`re seeing something fairly remarkable happen on the political train. We`re seeing the Washington establishment abandoning Marco Rubio. I think they`ve made the determination that Marco can`t win. And they`re rushing to support Donald Trump.

Liberty is never safer than when politicans are terrified.

I'm a maniac, and everyone on this stage is stupid, fat and ugly. And Ben [Carson] you're a terrible surgeon.

The one thing that might have stopped San Bernardino, that might have stopped 9/11 would have been stricter controls on those who came here.

Donald Trump threatened to file a defamation suit against me for running a TV ad that consisted only entirely of his own words on national television. Now, that's really a remarkable theory, that it is defamation to show people what he said on national TV. I think the voters are smarter than that.