We cannot tolerate a nuclear Iran. It would be a game changer. Not only would it threaten Israel, a country that is our stalwart ally, but it would also create an environment in which you could set off an arms race in this Middle East.

If you look at how I've tried to and how I'll continue to try to govern, I'm not driven by some ideological agenda. I'm a pretty practical guy and I just want to make sure that things work.

I think when you're governing, it will become increasingly apparent that if you were to just eliminate trade deals with Mexico, for example, well, you've got a global supply chain. The parts that are allowing auto plants that were about to shut down to now employ double shifts is because they're bringing in some of those parts to assemble out of Mexico. And so it's not as simple as it might have seemed.

Africa doesn't need strongmen, it needs strong institutions.

The Greek people are entrepreneurial.

To me the question right now is: How do I close that first three-quarters of the achievement gap, education gap, wealth gap? What gives me the best chance to do that? And I'm pretty darn sure that if America is a just society and treating people well right now, irrespective of past wrongs, that I'm going to close a big chunk of that gap. I've seen it.

In order for us to solve many big problems around the world, it is in our interest to work with Russia and obtain their cooperation.