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.

It would be a huge mistake to abandon democracy promotion. Peaceful political change has been enormously successful in the past years in Eastern European countries as well as in countries like South Korea, South Africa, Chile and Indonesia. However, if possible, the use of force is something to avoid except in cases where genocide is threatened, like Bosnia or Libya or with regimes that threaten our security, like the Taliban and Saddam Hussein.

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

China, in the future, is going to have even more nuclear capability than it has had in the past. I don't believe that they have anything to fear from the United States, and I frankly don't believe they do fear the United States.

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

Public action should seek to expand the set of opportunities of those who have the least voice and fewest resources and capabilities.

There has been a good deal of comment — some of it quite outlandish — about what our postwar requirements might be in Iraq. Some of the higher end predictions we have been hearing recently, such as the notion that it will take several hundred thousand U.S. troops to provide stability in post- Iraq, are wildly off the mark. It is hard to conceive that it would take more forces to provide stability in post-Saddam Iraq than it would take to conduct the war itself and to secure the surrender of Saddam's security forces and his army — hard to imagine.