It's a very serious matter. And what should we do about it? We should reinforce NATO. We need to be prepared to take solid actions to make it clear that we will not tolerate any intervention, and Russian intervention.

Politics doesn't have to be a drag. It can be positive, and it can be fun, and it can be inspiring.

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.

I see Hillary [Clinton] as a calculating politician without any vision. It depends what the next thing is that they calculate she needs to say.

I do not support a civil war. I don't want to be policeman of the world. But we can't back off of this.

I remember when the Egyptian ambassador to the United States stood in the Rose Garden and pledged Arab commitment to removing Saddam Hussein from Kuwait.

When I listen to candidates spend all their time attacking Barack Obama, I'm glad they're not driving this bus because they'd be looking through the rear-view mirror. I look through the windshield at the road ahead.