(George Bush) betrayed this country! He played on our fears. He took America on an ill-conceived foreign adventure dangerous to our troops, an adventure preordained and planned before 9/11 ever took place!

The truth about the climate crisis is still inconvenient for the large carbon polluters and the politicians who are in their pockets.

It's not unusual to find big political shifts that take place beneath the surface before they're visible above the surface.

I have absolutely no plans and no expectations of ever being a candidate again.

We can't negotiate the facts. We can't negotiate the truth about the situation. And for those who are too fearful to finish, it can be done and must be done. Make sure we succeed, . . . It is wrong for this generation to destroy the habitability of our planet and ruin the prospects of every future generation.

It should be lifted above partisanship because it's a question of survival. It's a moral issue.

I remain optimistic that ultimately free speech and a free press where individuals have access to the dialogue will have a self-correcting quality.