It is a public financing system that everybody knows is antiquated. It no longer works. Nobody can become president based on that system.

I am not a great fan of the payroll tax holiday because I'm nervous about what it does to the future of Social Security.

I worry very much about kids growing up in a society where they think: "I'm not going to talk about this issue, read this book or explore this idea because someone may think I'm a terrorist." That's not the kind of free society I want for our children.

I think, clearly, we got to work closely with China to resolve the serious problems we have, and I worry about Putin and his military adventurism in the Crimea and the Ukraine.

You need a Democratic Party which is a grassroots party, which makes decisions from the bottom on up, not just from the top on down.

It means joining with allies to deploy renewable energy technologies -- both at home and around the world -- to confront the very real and present danger of potentially irreversible climate change.

I think if we're looking at lasting peace in the Middle East, the United States has got to respect the needs of the Palestinian people. They cannot be pushed aside.