Stamina. There is a greater physical element to this job than you would think, just being able to grind it out. And I think your ability to not just mentally and emotionally, but physically be able to say, "We got this. We're going to be OK."

There's just a whole different attitude and vibe when you're not in power as when you're in power.

We will convey our deep appreciation for the Islamic faith, which has done so much over the centuries to shape the world - including in my own country.

To restore America's competitiveness, we must recruit a new generation of science and technology leaders by investing in diversity.

You know, there are certain things that make for good sound bites but don't always translate into good policy.

Two-thirds of Americans believe that, after a baby's heart is beating and they can feel pain, that they need some protection.

Change is never easy, but always possible.