Climate change is real, caused by human activity and already devastating our nation and planet. The United States must lead the world in combating climate change and transforming our energy system away from fossil fuels and toward energy efficiency and sustainability.

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.

I think the issue of income and wealth inequality is in fact a moral issue.

You know, let me be very clear. I supported Barack Obama originally.

Many people can talk for a long period of time. But controlling, you know, your urinary tract is maybe the more difficult issue.

I think we've got a number of states coming up that we're going to do extremely well and possibly winning, including California and New York state.So I think we do have a path to victory.

Politics is not about a person. We transform America not by electing some guy or woman to be president; we transform this country when millions of people stand up and fight back. That will result in good leadership on top. So the goal right now is not to worry about who's going to be running in 2020 or 2080. The goal now is to mobilize millions of people around a progressive agenda.