How can the United States be competitive globally if higher education is unaffordable? Germany, Austria, Denmark, Finland, Norway, Scotland and Sweden have no tuition for college. Other countries have low tuition. We need the best educated workforce in the world. Instead of spending endless amounts on the military, we need to invest in our young people.

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.

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.

If you look at virtually all of the issues of importance to the people of America - issues like making public colleges and universities tuition-free - Hillary Clinton is now on record for doing that for people making $125,000 a year or less. You know what? That is pretty revolutionary. That will transform the lives of millions of families in this country. That's what Clinton stands for.

At a time when our planet is warming due to climate change, the last thing our environment needs is more drilling. What we need is for Congress and the White House to move toward clean energy such as solar, wind and geothermal.

Families are struggling to put bread on the table, send their kids to college and take care of their basic needs. America needs a political revolution.

The truth is we have a political system and an economic system controlled by a few extremely wealthy people. Not Barack Obama, not Bernie Sanders, no one person has the influence by himself or herself to take on this enormous array of power unless millions of people begin to work together to demand changes.