The truth is that political consciousness in this country is pretty low... To the degree that we can help educate and organize people around the most important issues facing their lives and show that there is support for fundamental changes in the way we do business in the United States of America in terms of income inequality, in terms of low wages, in terms of disastrous trade policies, in terms of being the only major country not to have a national healthcare program - that's success.

I think my experience at the University of Chicago, working in the civil rights movement, working in the peace movement, working with community organizations, did a lot to influence the politics that I have.

Donald Trump tapped into the anger of a declining middle class that is sick and tired of establishment economics, establishment politics and the establishment media.

We have to develop a strong economic message which says every American is entitled to health care through a national health care program. And we're not going to allow these large corporations to push through trade agreements which allow them to throw Americans out on the street and run to China.

The first thing that I've got to think about is: What does a Donald Trump presidency mean for the people of my state and for the people of this country? And for the people of the world? I think it would be an absolute disaster. It would be beyond a disaster.

I've lost six different times. You can't say, 'Well, he lost, that's the end of the world.' You have to say, 'Okay, you lost, what did we do wrong?

Here's something that I believe we have to do as we put together an international coalition, and that is we have to understand that the Muslim nations in the region - Saudi Arabia, Iran, Turkey, Jordan - all of these nations, they're going to have to get their hands dirty, their boots on the ground. They are going to have to take on ISIS.