You can't become a billionaire stepping over children sleeping on the street.

I've lost six different times. You can't say, 'Well, he lost, that's the end of the world.' You have to say, 'Okay, you lost, what did we do wrong?

People understand that the economy is rigged. They're working longer hours for low wages. All new income and wealth, almost all, is going to the people on top.

The billionaires and their super PACs increasingly control the American political process. This is not democracy. This is not what brave Americans fought and died to defend. This is oligarchy. This is government of the few, by the few and for the few. We must overturn Citizen United and move to public funding of elections.

If the environment were a bank, it would have been saved by now

Let's ask why it is that we pay, by far, the highest prices in the world for prescription drugs, and your medicine can be doubled tomorrow, and there's nothing that the government can do to stop it.

Look, if you have somebody who doesn't have health insurance, who doesn't have a doctor or dentist, and in order to deal with their cold or flu or dental problem, they go to an emergency room - in general, that visit will cost ten times more than walking into a community health center.