EU is clueless about the effect of continuing to allow the Iranian Mullahs to finance Terrorist operations out of oil revenues while their nation starves and shivers in terror.
The nuke threat is still real too.
Only the Mullahs and there close internal allies benefit.
My guess, behind the Iran Nuke deal, some of EU POLs benefited hugely. That is how the EU swings. Smother this now.
The EU may try to end-run Trump but its major corporations (and even numerous minor ones) have already ceased sales with/operations in Iran. The power of the American market is stupendous.