Today, suddenly, after, what, five years, suddenly he [Donald Trump] became convinced that it's not an issue. Yesterday it was an issue. It will probably become an issue again for him. You know, the guy may have a memory problem.

The most recent science including from Jim Hansen, the foremost climate scientist, suggests that we could see as much as, according to his study, meters' worth [of sea-level rise] - that is nine, 12, 15 and more - as soon as 50 years from his study.

We have not been successful in deterring the growth or expansion of any terrorist group that we've been fighting.

Who knows what it is, but he [Donald Trump] is incapable of having a consistent thought or policy.

Our Facebook went off the charts and volunteers poured into our campaigns and actually helped us achieve the ballot access status that we have now on the ballot in just about 48 states and this has continued.

The way that you address this right-wing extremism is actually by putting forward a truly progressive agenda. That's the only solution here.

I think public health is kind of in a very sad state of affairs here in this country.