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    Former US official: 'Likely' US will leave Iran deal

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Former US official: 'Likely' US will leave Iran deal

Gary Samore, former White House Coordinator for Arms Control & WMD, is a skeptic-turned-believer in the 2015 Iran nuclear deal. He speaks with Christiane Amanpour.

Former US official: 'Likely' US will leave Iran deal

Gary Samore, former White House Coordinator for Arms Control & WMD, is a skeptic-turned-believer in the 2015 Iran nuclear deal. He speaks with Christiane Amanpour.