AdvertisementU.S. Will Lose 'All Credibility' If Congress Rejects Nuclear Deal, Kerry SaysPlay10:23Download AudioJuly 20, 2015Sam SandersfacebookEmailSecretary of State John Kerry spoke with NPR's Steve Inskeep at the State Department. Kerry said if Congress or a future president reverses a nuclear control agreement with Iran, U.S. credibility will suffer. (Kainaz Amaria/NPR)
