It is not good enough to say, "Well, hey, I vote every two years. I vote every four years." That's fine, but that is not good enough.

I have taken on virtually every element of the big money establishment, whether it's the Koch brothers, and the big energy companies, whether it's the industrial complex, whether it's Wall Street... I have taken on the drug companies. I have taken on the insurance companies.

In America, we are living in a society which is moving more and more toward an oligarchic form of society where government is dominated heavily by big-money interests.

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

Most Republicans are not prepared to stand up to the fossil fuel industry because they get a lot of their campaign funds from the Koch brothers and other people in the fossil fuel industry. That tells me why we have to reform our campaign finance system.

As the nation at last confronts global warming, it is no time for denial, greed, cynicism or pessimism.

I am sure that there are some single payer advocates who think the only thing worth fighting for is single payer.