The Iran nuclear deal violated the bumper sticker rule of American politics: If really put to the test, the argument that best fits on a bumper sticker is most likely to prevail.

To oppose the Joint Comprehensive Plan of Action all one had to do was note the pallets of cash; the shouts of “Death to America!;” the place at the negotiating table for ayatollahs who have been our enemies from the 1979 hostage crisis to the Iranian-made IEDs that killed U.S. soldiers in Iraq; the numerous loopholes in its provisions containing Tehran’s ambitions.