In Germany, college tuition is free. In America, college tuition is increasingly unaffordable. In a highly competitive global economy, which country do you think will have the best educated work force and a competitive advantage? We must make tuition free in public colleges and universities and substantially reduce interest rates on student loans.

Donald Trump's language has been atrocious, his behavior toward women.

Don't stay in one place for eight or nine hours.

The basic issue of an American society which is fair, which is providing opportunity for all, is nowadays being replaced by the correct perception that we're living in a rigged economy - where it doesn't matter how hard you worked, the result will be all the income goes to the people at the very top. It's leading to a lot of frustration and anger, and people want some fundamental changes to the way we do economics and growth.

Every candidate running for president has got to answer the following very simple question: At a time when we need to address the planetary crisis of climate change, and transform our energy system away from fossil fuels and into energy efficiency and sustainability, should we continue to give $135 billion in tax breaks and subsidies over the next decade to fossil fuel companies?

I know that virtually every member of the Senate understands we just cannot turn our back on men and women who have put their lives on the line to defend us and who are hurting today.

We are living in the richest country in the history of the world, yet we have the highest rate of childhood poverty of almost any major country and millions of people are struggling to put food on the table. It is my absolute conviction that everyone in this country deserves a minimum standard of living and we've got to go forward in the fight to make that happen.