The nation that leads the clean energy economy will be the nation that leads the global economy.

If John McCain wants to have a debate about who has the temperament, and judgment, to serve as the next Commander-in-Chief, that's a debate I'm ready to have.

Higher education cannot be a luxury reserved just for a privileged few. It is an economic necessity for every family. And every family should be able to afford it.

Libya is still a mess right now.

I think I was able to talk to people about values in ways that people - in ways that resonated with folks.

What I worry about would be that you essentially have two chambers, the House and the Senate, but you have simply, majoritarian, absolute power on either side. And that's just not what the founders intended.

Every decision, every debate, no matter how important it is, with the same question: 'What does this mean for the next election? What does it mean for your poll numbers? Is this good for the Democrats or good for the Republicans? Who won the news cycle?' That's just how Washington is. They can't help it. They're obsessed with the sport of politics.