Expressing the sense of Congress that the President should not initiate military action against Iran with respect to its nuclear program without first obtaining authorization from Congress.

States that Congress: (1) believes initiating military action without congressional approval in response to Iran's nuclear program does not fall within the President's "Commander-in-Chief" powers under the Constitution; (2) rejects any suggestion that P.L.107-40, the authorization of force resolution approved in response to the terrorist attacks of September 11, 2001, extends to authorizing military action against Iran over its nuclear program; (3) rejects any suggestion that P.L.107-243, the authorization of force resolution approved by Congress to go to war with Iraq, extends to authorizing military action against Iran over its nuclear program; and (4) believes that seeking congressional authority prior to taking military action against Iran is not discretionary, but is a legal and constitutional requirement.