These days, it takes only seconds - seconds - for a picture, a photo, to suddenly become an international headline.

We are a nation at war. This is also a time for hard choices. It's about ensuring that we are able to prevail in the conflicts in which we are now engaged. But it's also about being able to be strong and disciplined in applying our nation's limited resources to defending America.

The one thing that I remember from all of my intelligence briefings and my dealings with the Russians is that when you deal with the Russians, you have to deal with them from strength, not from weakness.

If we don't do something to simplify the tax system, we're going to end up with a national police force of internal revenue agents.

My experience is that the director of the FBI is particularly important to just how aggressive an investigation will be into an issue. And once you remove James Comey, it creates a vacuum at the top. And the fundamental issue will be whether or not there is support at the highest levels within the FBI to continue to conduct that investigation. That's going to be the question mark.

I'm not big on commissions.

The area of climate change has a dramatic impact on national security.