We have an international system. We all profit from it. Trade profits from it. Peace. We can travel around the world because of it. And part of that system is certain ideas, the certain ideas you can't invade other countries for no reason. You can't commit genocide. You can't - rogue regimes can't have nuclear weapons, and you can't gas your own people.

You have got to have two things in education reform. You have got to have some flexibility, so people can figure out what to do. But you also have to have accountable, basically what the Common Core standards were, some sort of set of national standards, so we can measure.

We still are America though. We're still a country that is a country of social mobility. We're still a country of immigrants. We're still a country with common ancestors. And reviving the civics of America and the idea that we're going to be united, at least not right now, but in some common future, and talking in that hopeful way that Martin Luther King did, that Abraham Lincoln did, seems to me that's the way.

Donald Trump, Vladimir Putin and Marine Le Pen seem to have no respect for the institutions that were created after World War II, and they see a potential alliance of populists around the world who would fight Islam and restore a certain semblance of traditional values.

When you're running for president you have to take some risks and you've got to show people something fresh and you've got to stay interesting.

When your institution is under threat, you feel you have a lot of hostility, you feel things are slipping away, you have got internal problems, there's a tendency to turn inward and to focus on yourselves.

The Republicans in Congress, they believe in Ronald Reagan's Republican Party, not Donald Trump Republican Party or Steve Bannon's Republican Party.