Here is what the practical impact of Citizens United means. What Citizens United means is that corporations call hundreds of millions of dollars into television ads, radio ads, and other forms of advertising to defeat those candidates who stand up and take them on.

I don't believe in trashing my opponents. I've never run a negative ad in my life. I believe in talking about issues, sometimes fighting for the media to talk about the issues, but that's what I do, and the people will decide.

The fossil fuel industry for too long has shifted enormous costs of carbon pollution onto the public.

There is far too little discussion in Washington about the collapse of the middle class , almost no discussion at all about the incredible income inequality and wealth inequality in this country, and the fact that we're moving toward an oligarch form of society.

The American people want to raise the minimum wage. Every poll tells us that. That bill will not get to the floor of the Senate. The American people want to ask the rich to pay more in taxes. But the legislation that will get to the floor is tax breaks for billionaires.

I have friends and supporters in the Human Rights Fund and Planned Parenthood. Hillary Clinton has been around there for a very, very long time. Some of these groups are, in fact, part of the establishment.

I think the people want to attack Israel for their policies, I think that is fair game. But not to appreciate that there is some level of anti-Semitism around the world involved in that, I think, would be a mistake.