(Reuters) - Vice President Joe Biden led a high-powered delegation to Capitol Hill on Thursday to try to persuade U.S. lawmakers to hold off on any more sanctions againstIranand let delicate diplomatic talks over Tehran's nuclear program unfold.PresidentBarack Obamais convinced that there is the potential for an international deal to preventIranfrom developing a nuclear weapon but worries that congressional pressure for additional sanctions could complicate negotiations.
Biden, Secretary of State John Kerry and Treasury Secretary Jack Lew held a closed-door session with Senate Democratic leaders and Republican and Democratic members of the Senate Banking Committee to update them on major power talks withIran. A new round of negotiations is set for next week in Geneva.
An official in Biden's office said the administration's message was that there may come a point when more sanctions are needed, but now may not be the best time for Congress to act.
But the appeal to wait is a tough sell in Congress, which tends to take a harder line on Iran than the administration. Several lawmakers said after the meeting they had not been convinced, and that fresh sanctions are needed to discourage Tehran's nuclear ambitions.
"I'm not ready to commit" to further delay, Robert Menendez, chairman of the Senate Foreign Relations Committee and a member of the Banking Committee, told reporters.
Republican Senator Mark Kirk, who strongly opposes any move to hold off on sanctions, said that if the banking committee delays its vote, he would seek to add more Iran sanctions to a defense authorization bill that could come to the Senate floor in November.
Others said they were more open to the appeal for a delay.
"I am mindful of the fact that maybe these discussions will bear fruit, and so we'll see," Republican Senator Mike Johanns said, although he added that any delay would not be long.
Democratic Senator Tim Johnson, chairman of the Banking Committee, said he had not yet decided whether to put off the committee's vote on new sanctions again. The banking panel, which has jurisdiction over sanctions bills, has delayed the measure from September at the administration's request.
NO OPEN-ENDED DELAY
Congress is weighing increasing sanctions to try to apply more pressure on Iran, which has uranium and plutonium programs that Western officials say are aimed at producing nuclear arms. Iran denies the accusations.
Administration officials argue that the current sanctions regime has had the desired effect, with new Iranian President Hassan Rouhani, a presumed moderate, seeking a deal to ease them and fulfill a campaign promise to improve the Iranianeconomy.
Sanctions imposed last year by Washington and the European Union have combined to slash Iran's oil exports by roughly 1 million barrels a day, depriving Tehran of billions of dollars of income and driving up inflation and unemployment.
The official in Biden's office said existing sanctions have "gotten us to where we are today, to have the opportunity to test Iranian intentions to seek an enduring diplomatic solution."
"No one is suggesting an open-ended delay for new sanctions, and there may come a point where additional sanctions are necessary," the official said, but Congress should reserve its ability to legislate when it is most effective.
"The window for negotiation is limited, and if progress isn't made, there may be a time when more sanctions are in fact necessary. We have always said that there would be no agreement overnight and we've been clear that this process is going to take some time," the official said.
By Reuters
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