Marco Rubio: “Neither did the hackers. I mean, they've developed, as well. And that's why this is a moving target.”

Mass migration is terribly costly for any society. It’s simply not sustainable over the long term.

We will live up to those commitments. We are living up to those commitments now.

No country in the world that’s responsible, governed by responsible people – can allow their borders to just be open and allow anyone that wants to come in to flood in.

What we’re not going to allow ever under any circumstances as long as President Trump is President is we’re never going to allow Cuba to become a base of operation against American interests or pose a threat to our national security.