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.

That's when America soars, when we look out for one another and we take care of each other, when we root for one another's success, when we strive to do better and to be better than the generation that came before us and try to build something better for generations to come, that's why we do what we do. That's the whole point of public service.

The alternative, no limits on Iran's nuclear program, no inspections, an Iran that's closer to a nuclear weapon, the risk of regional nuclear arms race, and the greater risk of war - all that would endanger our [American] security.

I believe we can keep the promise of our founders, the idea that if you're willing to work hard, it doesn't matter who you are or where you come from or what you look like or who you love. It doesn't matter whether you're black or white or Hispanic or Asian or Native American or young or old or rich or poor, able, disabled, gay or straight, you can make it here in America if you're willing to try.

The greatest danger of all is to allow new walls to divide us from one another

My task over the last two years hasn't just been to stop the bleeding. My task has also been to try to figure out how do we address some of the structural problems in the economy that have prevented more Googles from being created.

Muslim leaders around the globe have to continue working with us to decisively and unequivocally reject the hateful ideology that groups like ISIL and al Qaeda promote. To speak out against not just acts of violence, but also those interpretations of Islam that are incompatible with the values of religious tolerance, mutual respect, and human dignity.