The bottom line is this - whereas Iran was steadily expanding its nuclear program, we have now cut off every single path that Iran could have used to build a bomb.

The president [Barack Obama] laid out his vision for foreign policy in a way that we hadn't heard before. And it could be summed up, I think, in two words - realistic idealism.

One of the things that I've urged the president-elect to do is to develop a strong working relationship with the intelligence community and I think it's important that Congress, on a bipartisan basis.

One of the best parts of the holiday season is spending time with the special people in your life.

I'll change the posture of our federal government from being one of the most anti-science administrations in American history to one that embraces science and technology.

Generally speaking in America, a lot of environmentally problematic facilities tend to be located in places where poor folks live because wealthier folks have the ability to say, "not in my backyard."

As the United States begins a new chapter in our relationship with Cuba, we hope it will create an environment that improves the lives of the Cuban people, not because it is imposed by us, the United States, but through the talent and ingenuity and aspirations, and the conversations among Cubans from all walks of life so they can decide what the best course is for their prosperity.