This agreement was never about trust. It is about stringent verification — in perpetuity. The deal effectively cut off all potential pathways for Iran to acquire a nuclear weapon.

Now President Trump has ceded the moral high ground and freed Iran from all those constraints. Iran will be able to resume its nuclear activities without being blamed for violating the agreement.

Instead, it is the United States that is about to unilaterally violate the very agreement it negotiated by reimposing nuclear-related sanctions while Iran remains in compliance. Mr. Trump disregarded the pleas of our closest European allies, who worked for months to try to address his objections. Instead of reaching agreement with our allies, President Trump told them to get lost and now will penalize European companies for abiding by an agreement that is working. The political and economic consequences for our relationship with Europe will most likely be considerable.