Every math curriculum in the world is based on the idea of hand-calculating, and most of what you're teaching is how to calculate. And I think the resistance to this is very variable.

Islamic State is mainly a direct result of the failure in Syria. That's where IS has grown. That's where IS spread from.

Our security depends on having good relationships with our allies. Donald Trump mainly shows contempt for them.

I like globalization; I want to say it works, but it is hard to say that when six hundred million people are slipping backwards.

I wish there were somebody I could be comfortable voting for. I might have to vote for Hillary Clinton, even though I have big reservations about her.

We did not go to war in Afghanistan or in Iraq to, quote, 'impose democracy.' We went to war in both places because we saw those regimes as a threat to the United States.

I certainly think it's important to speak up and say how unacceptable Donald Trump is. I'm always more than willing to do that.