We must begin by acknowledging a hard truth. We will not eradicate violent conflict in our lifetimes. There will be times when nations, acting individually or in concert, will find the use of force not only necessary but morally justified.

I have always believed that what brings us together is stronger than what pulls us apart.

I don't think the Democrats should think in narrow tactical terms about mid-term elections.

If the global economy is unresponsive to people who feel left behind, if inequality continues to grow, then we could end up seeing more and more of these divisions arise throughout advanced economies around the world.

The Balkanization of the media means that nobody is having a single conversation with a single set of agreed-upon facts and assumptions the way you had as recently as the 90s.

If you look at Libya, I was deeply concerned about what would happen after Qaddafi was gone.

Buy health insurance, or go to jail.