The first thing that I've got to think about is: What does a Donald Trump presidency mean for the people of my state and for the people of this country? And for the people of the world? I think it would be an absolute disaster. It would be beyond a disaster.

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.

What I do know is that drones are a modern weapon. When used effectively, when taking out ISIS or terrorist leaders, that's pretty impressive. When bombing wedding parties of innocent people and killing dozens of them, that is, needless to say, not effective and enormously counterproductive. So whatever the mechanism, whoever is in control of that policy, it has to be refined so that we are killing the people we want to kill and not innocent collateral damage.

We do not need to have a president who insults Mexicans and Latinos and Muslims and women and veterans and African-Americans, we need a president who brings us together, not divides us up.

I do believe that billionaires and multi-millionaires should be paying more in taxes.

We had the opposition of virtually the entire Democratic leadership in every state in this country.

Demagogues like [Donald] Trump come along. He says I know what the cause is. Remember, later, the cause was that Mexicans who are coming to this country, well, they were criminals or rapists. Now it is Muslims.