In terms of Iran and in terms of Saudi Arabia, of course they hate each other. That's no great secret. But John Kerry, who is I think doing a very good job, has tried to at least get these people in the room together because both of them are being threatened by ISIS.

I come from a state that has virtually no gun control. And yet, at political peril, I voted for an instant background check, which I want to see strengthened and expanded. I voted to ban certain types of assault weapons which are designed only to kill people.

I believe, along with Pope Francis and almost all scientists, that climate change is threatening this planet in horrendous ways, and that we have to be aggressive in transforming our energy system away from fossil fuel and defeat the Keystone Pipeline.

Today, the United States is No. 1 in corporate profits, No. 1 in CEO salaries, No. 1 in childhood poverty and No. 1 in income and wealth inequality in the industrialized world.

[Hillary] Clinton is too much into regime change and a little bit too aggressive without knowing what the unintended consequences might be. Yes, we could get rid of Assad tomorrow, but that would create another political vacuum that would benefit ISIS.

Democrats and progressives do well when the voter turnout is high. Republicans do well when the voter turnout is low.

Social Security has nothing to do with the deficit.