In the zero-sum budget game, every dollar spent on this problem [illegal immigration] must be taken from somewhere else....No, we should not tolerate people immigrating illegally. But we need to treat this issue honestly and fairly.

Iran is isolating itself from the rest of the world.

I think it's extremely important that the president Donald Trump himself indicate that he too wants to discover the full truth behind what the Russians did to elections 2016.

China is a major power in the Pacific and I think we are dealing with some common threats in that region: the whole issue of Korea and the stability of Korea, the whole issue of nuclear proliferation, the whole issue of providing free access to our ships that are operating in that area.

I'm going to give people the benefit of the doubt.

The reality is that the United States military alone cannot be all things to all nations. We will sharpen the application of our resources, better deploy our forces in the world and share our burdens more and more effectively with our partners. And frankly, all our allies need to do the same.

I don't usually comment on columnists' ideas of what I'm thinking. That's a dangerous game to get into.