On December 1, the U.S. Senate, by a 99-0 margin, passed a 10-year extension of the Iran Sanctions Act (ISA) sending the measure to the White House and delaying any potentially tougher actions until next year. Originally approved in 1996, the extended bill passed onto the Senate in November with only one vote against it from the House. Congressional authority to enforce sanctions against Iran—which was due to expire on December 31 if not renewed—will be presented to President Barack Obama, who will decide whether to sign the bill into law in the coming days.