NATO is still the most remarkable alliance in history. It stuck together through 40 years of Cold War, and it then joined together to fight in Afghanistan. In the 1980s, I would not have thought this was going to be possible.

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

I've met quite a few dictators up close and personal in my life.

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.

If a cat sits on a hot stove once, it will never sit on a cold one either.

The Bernie Sanders phenomenon shows that it's not confined to Republicans. There is a general sentiment that America is on the wrong track.

Saddam Hussein had nerve gas and used it against his own people, he had used chemical weapons against the Iranians and he almost had a nuclear bomb in 1981 and in 1991. And he had been caught with anthrax in 1995 by the UN inspections after denying that he had it.