Seth Moulton actually said...

It is an honor to have you before us. And the example of bipartisanship that you set is one that we would do well to follow.

What is the U.S. doing to make sure that that doesn't happen, that Russia never crosses a threshold into using tactical nuclear weapons in a...

I think you will find bipartisan support in this committee for making sure that we have an effective nuclear deterrent.

I would hazard to say that using the word 'never' is not going too far when we are talking about the existential threat of nuclear weapons.