John Kerry: “This is troubling news, and an unusual step to take.”

I know President Biden feels very strongly about living up to our commitments, and our values.

No, that's not acceptable. And I believe it was an algorithm that kicked that out kind of crazily.

We are competing, but everybody has their own approach, which is one of the exciting things here.

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.