The testimony by the State Department's Wendy Sherman immediately prompted objections in the Senate Foreign Relations Committee, whose Democratic and Republican members pushed for clear markers as part of the diplomatic effort. World powers and Iran recently committed to a four-month negotiating extension through November 24, an agreement that allows the Islamic republic to recoup USD 2.8 billion in Iranian assets frozen in overseas bank accounts.
But pressed by senators to outline how long the administration would continue talking and how far it would consider bending to coax Tehran into an accord, Sherman refused to be pinned down. She wouldn't promise the current extension would be the last. She said the administration would consult lawmakers before waiving more sanctions, but doesn't need their approval.
Iran says its program is solely designed for peaceful nuclear energy generation and medical research. The United States and its partners believe Iran's uranium enrichment activity, a potential heavy water facility that can produce plutonium and ballistic missile research, all point to a covert weapons program.
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An interim deal reached last November and put into place earlier this year provided Tehran up to USD 7 billion in economic relief for a series of measures to freeze in place Iran's nuclear advancement. The goal was to reach a final agreement by July 20 but Secretary of State John Kerry and other top diplomats said that while tangible progress had been made, the gaps were still too wide.
"We wouldn't have agreed to an extension if we did not have an honest expectation that we have a credible path forward," she said. "We still have work to do. We still have time to determine whether we can close the gap between what Iran has said it intends and what it is willing to do."
Congress would enjoy its greatest leverage if a comprehensive accord is reached.
Lawmakers would essentially enjoy a veto over any final deal because they could place strict limits on Iranian activity in exchange for the revocation of US nuclear-related sanctions.