How Congress Could Derail a Nuclear Deal With Iran

When Secretary of State John Kerry joined the nuclear negotiations at the Intercontinental Hotel in Geneva last Saturday, he employed the oldest negotiating trick in the book, evoking Congress as the bad cop to the Obama administration’s good cop. Kerry told Iranian Foreign Minister Mohammad Javad Zarif that if they failed to reach an agreement that day, the Obama administration would be unable to prevent Congress from passing additional sanctions against Iran. Less than 24 hours later, Kerry and Zarif walked into the hotel lobby to announce that they had struck a deal to freeze Iran’s nuclear program temporarily.

In the face of criticism from members of Congress and U.S. allies in the Middle East, administration officials have insisted that the Geneva agreement is just the first step toward a more far-reaching disarmament deal. But such a deal will require that the Obama administration promise not just to forestall the imposition of new sanctions, but also to reduce dramatically the sanctions already in place. And that depends on the cooperation of a Congress that has been singularly uninterested in assuming the role of good cop in the showdown with Iran.