Meanwhile, the Senate has also approved a measure critics say could help open the door to military action against Iran. The resolution calls on the State Department to designate the Iranian Revolutionary Guard Corps a terrorist organization. Senators approved an amendment from Senators Joe Lieberman of Connecticut and Jon Kyl of Arizona threatening to “combat, contain and [stop]” Iran via “military instruments.” Senator Jim Webb of Virginia called the vote “Cheney’s fondest pipe dream” and said it could “read as a backdoor method of gaining Congressional validation for military action.” The final vote was 76 to 22. Democratic presidential candidate Senator Hillary Clinton voted in favor of the measure. Rival hopeful Senator Barack Obama did not vote.