I was a member of the Armed Services Committee for 18 years. I spent a big chunk of my life studying national security issues and our role in the world.

We have to go massively, like we did in the first Gulf War where we destroyed Saddam's ability to take Kuwait. We need to have a coalition that will stand for nothing less than the total destruction of ISIS and we have to be the leader.

[Barack Obama] needs to really engage both Republicans and Democrats.

I was discouraged when I read that [Senate Minority Leader Mitch] McConnell said that Trans-Pacific Partnership was dead, but then I was told he turned around and said, "No, it's not."

But, frankly, to try to create some sort of a religious standard in terms of who can come to America, we're a melting pot. And as long as people have positive and good intent, they ought to be able to come.

There is a big problem. It's called encryption. And the people in San Bernardino were communicating with people who the FBI had been watching. But because their phone was encrypted, because the intelligence officials could not see who they were talking to, it was lost.

I don't make promises, by and large, that I can't keep.