Vice President Joe Biden. Photo: wiki commons.

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 against Iran and let delicate diplomatic talks over Tehran’s nuclear program unfold.

President Barack Obama is convinced that there is the potential for an international deal to prevent Iran from developing a nuclear weapon but worries that congressional pressure for additional sanctions could complicate negotiations.

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