The word 'campaign' is a war term. So when you go into a campaign you just prepare to go to war. If you think this is an exercise in civic activity... then you are going to be surprised.

Saddam Hussein certainly has chemical and biological weapons. There's no question about that.

Students will want to address the issues that they have a passion for, but I think that the challenge to this generation is the challenge of the climate crisis. Young people bring more enthusiasm, knowledge and sense of urgency on that issue. This is as planet they will inherit, they have a responsibility for it as well, and part of that responsibility is to urge people in power to make the right decisions about how we go forward.

So when [Donald Trump] makes his address on the 40 days that he has been president, he has nothing to show for it but fear in every way.

We can all do better. America is an entrepreneurial society. We had entrepreneurs who started our country. And they want us to think in fresh, new, different ways all of the time.

The American people voted to restore integrity and honesty in Washington, D.C., and the Democrats intend to lead the most honest, most open and most ethical Congress in history.

I come back to the science that is in it to reduce our dependence on foreign oil and climate change. It's about science, science, science and science, innovation, as we rebuild America, create jobs, invest in our people and turn this economy around.