This week marks the fifth anniversary of the congressional vote granting President George W. Bush unprecedented war-making authority to invade Iraq at the time and circumstances of his own choosing. Had a majority of either the Republican-controlled House or the Democratic-controlled Senate voted against the resolution or had they passed an alternative resolution conditioning such authority on an authorization from the United Nations Security Council, all the tragic events that have unfolded as a consequence of the March 2003 invasion would have never occurred.