John Kerry: “They have an ability to go enrich again. What is the next step for the United States?”

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

no country can solve the climate crisis alone. This requires multilateralism automatically.

There is no current proposal or plan that has been agreed to which would require us to do that.

The reason that happened, my friend, is because Donald Trump pulled out of that agreement.