What you are talking about is retroactive classification. And the reason that happens is when somebody asks or when you are asked to make information public, I asked all my emails to be made public. Then all the rest of the government gets to weigh in.

We got an international coalition [against Iran], and we imposed that. It was slow, patient diplomacy, nothing at all particularly headline-worthy. But then you got to the point where the negotiations - which I started and Secretary [John] Kerry completed - I think made the world safer.

People are working hard in the USA to make things. And I want to help them do it even more.

I spent four and a half hours debating Donald Trump in three debates, which I think should put to rest any questions about my stamina.

The nuclear arsenal that Pakistan has, I believe is secure. I think the government and the military have taken adequate steps to protect that.

A man with a long history of racial discrimination should never run our government.

Children's lives are not shaped solely by their families or immediate surroundings at large. That is why we must avoid the false dichotomy that says only government or only family is responsible. . . . Personal values and national policies must both play a role.