Bill Clinton: “Reducing class size is one of the most important investments we can make in our children's future.”

And I think we are facing challenges today without precedent in our history.

I might not be around if I hadn't become a vegan. It's great.

I don't think any person with a straight face can tell you that Katrina was caused by global warming. But what we do know, what the evidence shows, is that there is an increase in the number and severity of bad weather events all across…

I think we’re in good shape for the fall.