I do believe, as my father once said, that "No matter how hard the loss, defeat might serve as well as victory to shake the soul and let the glory out."

Here is the truth: The Earth is round; Saddam Hussein did not attack us on 9/11; Elvis is dead; Obama was born in the United States; and the climate crisis is real.

Iraq does pose a serious threat to the stability of the Persian Gulf and we should organize an international coalition to eliminate his access to weapons of mass destruction. Iraq's search for weapons of mass destruction has proven impossible to completely deter and we should assume that it will continue for as long as Saddam is in power.

The good news is, we have everything we need now to respond to the challenge of global warming. We have all the technologies we need, more are being developed.... But we should not wait, we cannot wait, we must not wait.

The United States is the only nation that can lead the world toward a solution on climate change.

When people flirt with despair about the future, they are less likely to take the actions necessary to safeguard it, focusing instead on the short-term.

I never like the question about letter grades, but I think Trump is failing. I think that every day there's another set of tweets and another set of controversies, and nothing seems to be getting done that's any good. And there seems to be kind of a policy paralysis in Washington. Even the appointments he's supposed to make as a new president, so I focus most of all on climate, and so my opinion of his time as president is certainly influenced by my opinion of the job he's done on climate. He's tried to move the country in the wrong direction.