Social Security is a promise that we cannot and must not break.

Fifty years ago, great schools like the University of California and the City University of New York - as well as many state colleges - were tuition free. Today college is unaffordable for many working class families. For the sake of our economy and millions of Americans, we must make higher education more affordable.

Brothers and sisters: Now is not the time for thinking small, now is not the time for the same-old, same-old establishment politics and stale inside-the-Beltway ideas.

I think, with Trump, the major point is this guy has business enterprises all over the world. And you're looking just at immense, immense conflict of interest.

We don't need a president like a Trump who doesn't actually, George, doesn't even believe in climate change, let alone wants to do anything about it, rejecting science.

I want Trump to send out a tweet saying that he's going to keep his campaign promises. He's not going to cut Social Security, Medicare and Medicaid.

I'm very proud that the state of Vermont banned fracking. I hope communities all over California, and all over America do the same.