If you have a family member who maybe is undocumented, then you have an even greater reason to vote.

Where the stakes are the highest, in the war on terror, we cannot possibly succeed without extraordinary international cooperation. Effective international police actions require the highest degree of intelligence sharing, planning and collaborative enforcement.

We've been able to build up the Afghan security forces and stabilize it.

You have to be involved during midterm elections, you have to care about what happens at a school board level.

We're opposing Russia's aggression against Ukraine, which is a threat to the world, as we saw in the appalling shoot-down of MH17.

There isn't anyone who can't serve ... nobody who can't help somebody else.

What is true, and I think that we can't deny it, is that some of the same concerns about globalization, about technology, rapid social change that were reflected in Brexit, that's been reflected in some of the debates in Germany and France and other places, that those exist in the United States as well. My view is that over the long term, over the next 10, 15, 20 years, if we are able to address the legitimate economic concerns of those who feel left behind by globalization, then many of these tensions will be reduced. And we will see a world that is less divided.