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    Intense battle on Capitol Hill over Iran deal

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Intense battle on Capitol Hill over Iran deal

During a hearing about the Iran nuclear deal, Sec. John Kerry gets grilled by presidential candidate Sen. Lindsey Graham. CNN's Barbara Starr reports.

Intense battle on Capitol Hill over Iran deal

During a hearing about the Iran nuclear deal, Sec. John Kerry gets grilled by presidential candidate Sen. Lindsey Graham. CNN's Barbara Starr reports.