We have to create a process which has legitimacy for the people of Syria. And we have to have a process where the Russians and the Iranians and the neighbors - all of them, Saudis, Turks, Qataris, a very complicated brew - that you have to bring them together and they can find agreement. That's the fundamental premise of the Geneva Communique that you will have, by mutual consent, a process of transition.

You can't have responsibility and you can't have us living up to our ideals unless it's based on a fairly common acceptance of truth, of what is true - what is the truth here?

I will never conduct a war or start a war because we want to; the United States of America should only go to war because we have to. And if you live by that guidance, you'll never have veterans throwing away their medals or standing up in protest.

I'm going to be a president who believes in science.

We are all proud of is World War II where we went in, we were decisive, we came to the conclusion that freedom prevailed, and we were heroes.

Just the fact that we can't pass budgets in our Congress, just the fact that we are gridlocked in our own democracy, the fact that everybody who travels can see that we're not investing in our airports, in our rail, in our infrastructure and so forth, people are noticing a United States that is not getting the job done in some ways.

I can tell you, Massachusetts, fastest growing sector of our economy is clean energy and energy efficiency companies. And they're growing faster than any other sector.