By Louis Charbonneau
UNITED NATIONS Thu Mar 12, 2015 6:28pm EDT
(Reuters) - Major world powers have begun talks about a
United Nations Security Council resolution to lift U.N. sanctions on Iran if a nuclear agreement is struck with Tehran, a step that could make it harder for the U.S. Congress to undo a deal, Western officials said.
The talks between Britain, China, France, Russia and the United States — the five permanent members of the Security Council — plus Germany and Iran, are taking place ahead of difficult negotiations that resume next week over constricting Iran's nuclear ability.
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U.S. Secretary of State John Kerry told Congress on Wednesday that an Iran nuclear deal would not be legally binding, meaning future U.S. presidents could decide not to implement it. That point was emphasized in an open letter by 47 Republican senators sent on Monday to Iran's leaders asserting any deal could be discarded once President Barack Obama leaves office in January 2017.
But a Security Council resolution on a nuclear deal with Iran could be legally binding, say Western diplomatic officials. That could complicate and possibly undercut future attempts by Republicans in Washington to unravel an agreement.
Officials said a U.N. resolution could help protect any nuclear deal against attempts by Republicans in U.S. Congress to sabotage it. Since violation of U.N. demands that Iran halt enrichment provide a legal basis for sanctioning Tehran, a new resolution could make new sanction moves difficult.
"There is an interesting question about whether, if the Security Council endorses the deal, that stops Congress undermining the deal," a Western diplomat said.
Other Western officials said Republicans might be deterred from undermining any deal if the Security Council unanimously endorses it and demonstrates that the world is united in favor of a diplomatic solution to the 12-year nuclear standoff.