On July 29, the lead US Iran negotiator warned lawmakers that congressional action now that would threaten to impose new sanctions on Iran if a final nuclear deal is not reached in November could jeopardize the sensitive negotiations at a critical moment, and unravel the international coalition pursuing them.
“The administration believes quite strongly that at this moment in [the] negotiations, additional legislative action would potentially derail negotiations,” Undersecretary of State Wendy Sherman told the Senate Foreign Relations Committee July 29.