The billionaire class fully understands what is at stake. That's why a handful of them are pouring hundreds of millions of dollars into the current elections. Their goal is not to strengthen the middle class, but continue the trend in which the rich are getting richer at the expense of everyone else.

If we do not get our act together and transform our energy system away from fossil fuel, there is a real question as to the quality of the planet that we are going to be leaving our children and our grandchildren.

Any idiot, especially one who is prepared to die, who has a gun, can start shooting up people.

In terms of media, we did not get the kind of media attention that somebody like a Donald Trump got, because media is not necessarily interested in the issues facing the middle class, more interested in attacks in personality. So I think there were a lot of reasons.

I think everybody is in agreement that America is a great entrepreneurial nation. We have got to encourage that. Of course, we have to support small and medium-sized businesses. But you can have all of the growth that you want and it doesn't mean anything if all of the new income and wealth is going to the top 1 percent.

Super PACs and a corrupt campaign finance system are destroying American democracy. We're proud that we have received four million individual contributions, more than any candidate in American history at this point.

I believe strongly that we can protect our people without undermining our constitutional rights and I worry very, very much about the huge attacks on privacy that we have seen in recent years - both from the government and the private sector. I worry that we are moving toward an Orwellian society, and this is something I will oppose as vigorously as I can.