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john kerry defends iran nuclear deal against congress labott  tsr_00000814
john kerry defends iran nuclear deal against congress labott  tsr_00000814

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    Could disturbing tweet from Iran ruin nuclear deal?

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Could disturbing tweet from Iran ruin nuclear deal?

As Sec. John Kerry works to promote the Iran nuclear deal in Congress, the deal is being hit with criticism both at home and abroad. CNN's Elise Labott has the latest.

Could disturbing tweet from Iran ruin nuclear deal?

As Sec. John Kerry works to promote the Iran nuclear deal in Congress, the deal is being hit with criticism both at home and abroad. CNN's Elise Labott has the latest.