We're up against the conventional thinking that says your ability to lead as president comes from longevity in Washington or proximity to the White House. But we know that real leadership is about candor and judgment and the ability to rally Americans from all walks of life around a common purpose, a higher purpose.

As long as I'm president of the United States Iran will not get a nuclear weapon. I made that clear when I came into office.

One of the proudest things of my three years in office is helping to restore a sense of respect for America around the world.

Angela [Merkel] and I also agreed the need for a comprehensive and humane response to the devastating humanitarian crisis in Syria and for the influx of migrants and refugees from around the world. We need to build on the progress achieved at the U.N. Refugee Summit, which yielded new commitments from some 50 nations and organizations.

If American workers are being denied their right to organize and collectively bargain when I'm in the White House, I'll put on a comfortable pair of shoes myself. I'll walk on that picket line with you as President of the United States of America, because workers deserve to know that somebody is standing in their corner.

In November [2016], Americans are gonna have to make a decision about what we care about and who we are. We get these spasms of politics around immigration and fearmongering and then our traditions and our history and our better impulses kick in. That's how we all ended up here. 'Cause I guarantee you at some point every one of us has somebody in our background who people didn't want coming here. And yet here we are.

We are going through historic times, and my vision is a world, first of all, in which America continues to be that one indispensable nation. Because we're taking care of our own people, because our economy is strong and our middle class is growing, and people feel like hard work is rewarded, and we are continuing to expand opportunity and diversity and tolerance and respect.