In the 2000 election, George W. Bush, who had shirked military service, succeeded in presenting himself as more reliable on national security than Al Gore.

When I wake up in the morning, I think about Syria.

My basic feeling about military intervention is that it should be a last resort, undertaken only to stave off large-scale bloodshed.

Foreign policy is an explicitly amoral enterprise.

There is a fair amount of competition, obviously, with ISIL and the terrorist networks around the world, China also posing a different kind of threat to the rules-based order.

The story of U.S. policy during the genocide in Rwanda is not a story of willful complicity with evil. U.S. officials did not sit around and conspire to allow genocide to happen.

I believe the United States is the greatest country on Earth. I really do.