Samuel Nunn: “I know Rex Tillerson pretty well, and I am confident that he is well prepared to do what is essential for the security…”

I agree with Chairman Corker, Russia has been less than effective in dealing with its nuclear program.

I have no illusions about the challenge before us. It really pays to neglect or underestimate Russia or display gratuitous disrespect.

We should play it methodically, confident in our enduring strengths, and unapologetic about our values.

The key to solving the North Korea nuclear problem without a war is working with China. So alienating China--you pay a price for that.