The U.S. won’t negotiate exemptions to Ukraine-related sanctions on Russia to save the 2015 Iran nuclear deal and could try to strike a separate accord excluding Moscow, a senior U.S. official said, a diplomatic effort complicated by an Iranian missile attack on Iraq that sent American troops rushing for shelter.
With one of President Biden’s top foreign-policy goals imperiled, the U.S. official said Washington would start exploring alternatives to the deal over the next week if Russia didn’t back away from its demands for written guarantees exempting Russia from Ukraine-related sanctions that could curtail its future trade with Iran. Such guarantees could undercut the West’s punishing array of sanctions leveled at Russia over the Ukraine invasion.