John Cornyn actually said...

What justification can you offer for risking U.S. national security by altering U.S. nuclear strategy in pursuit of deeper reductions?

The credibility of the U.S. nuclear deterrent requires we maintain a ready, trained, and effective force.

It's important for Congress to understand just how much our nuclear deterrent costs.

I agree with the importance the NPR places on Russia joining us in any effort to move to lower nuclear force levels.