In terms of Iran and in terms of Saudi Arabia, of course they hate each other. That's no great secret. But John Kerry, who is I think doing a very good job, has tried to at least get these people in the room together because both of them are being threatened by ISIS.

What we are doing in this campaign [2016], it just blows my mind every day because I see it clearly, we're taking on not only Wall Street and economic establishment, we're taking on the political establishment.

Hillary Clinton does represent the establishment. I represent, I hope, ordinary Americans, and by the way, who are not all that enamored with the establishment, but I am very proud to have people like Keith Ellison and Raul Grijalva in the House, the co-chairmen of the House Progressive Caucus.

In the last presidential election Obama and Romney raised about $1 billion each. The Koch brothers, the second wealthiest family in America, now say they will raise nearly $1 billion for the 2016 elections. When one family can raise as much as an entire party, the system is broken. This is oligarchy, not democracy. We must overturn Citizens United.

Climate change is real, it is caused by human activity, and it is already causing devastating problems in America and around the world.

I don't represent large corporations and I don't want their money.

If you looked at Jeb Bush's campaign, it's more than just money. It's the nature of the candidate and the message and all that stuff.