[Richard Kimball]

Then it’s not our business. They can’t be in violation of an agreement with us if we are no longer a party to the agreement.

Definitely our business. We're pushing for international sanctions against Iran, and Iran just pulled away the fig leaf that let Europe avoid implementing sanctions. This gives President Trump a big stick to push the EU into sanctioning Iran.

[morphing libertarian]

we are not a party to the agreement but trump acts as if he is and he is the one who cancelled.