A July 20 deadline to reach a permanent deal on Iran 's nuclear program is looming . If a deal is reached , the U.S. will have to decide whether to lift sanctions , authors say . They say the U.S. is the most negatively impacted of the nations imposing sanctions . The report says that if Congress does not act by Sept. 30, it could lead to an economic crisis in Europe and elsewhere.
A July 20 deadline to reach a permanent deal on Iran 's nuclear program is looming . If a deal is reached , the U.S. will have to decide whether to lift sanctions , authors say . They say the U.S. is the most negatively impacted of the nations imposing sanctions . The EU will likely end sanctions if a reasonable deal is reached , regardless of the U.S. , they say .