I believe that Hillary Clinton is one of the best prepared people in our history to enter the Oval Office, with her vision, her knowledge, her experience, her strategic thinking, her connection to the American people.

I have deep emotions about the American people. If I were to cry for anything, I would cry for them and the policies that they're about to face.

When someone challenges you, your supporters turn out.

I promise to do everything in my power to achieve energy independence and to do so within ten years and to stop global warming, which says to the American people that we are about the future, about addressing how we create jobs, how we care for our children, how we grow our economy, and how we preserve our planet.

Of course the issue of ending war, and creating prosperity; they're overarching issues all the time. But right now, the challenge to this generation I believe is the climate crisis. It's a national security issue, it's a health issue in terms of clean air, it's a competitiveness issue in terms of innovation and it's a moral issue to preserve the planet for the next generation.

You cannot be a party in stagnation. You have to have the constant reinvigoration of fresher ideas and the debate in terms of role of government and the rest is as ancient as - as old as America.

The Democratic Party has always been a party that is not known for its unanimity.