When the Authorization for Use of Military Force Against Iraq Resolution of 2002 was challenged in court, it was determined to be legal. (politics.stackexchange.com)
The Iraq Resolution known as «AUTHORIZATION FOR USE OF MILITARY FORCE AGAINST IRAQ RESOLUTION OF 2002» cites national policy, a war on «terrorism», and United Nations Security Council Resolutions to justify authorization of military force against Iraq, but I am not aware of any document by which the United States has been legally bound by a declaration of war against Iraq as per the federal Constitution (Article 1, Section 8, Clause 11). (politics.stackexchange.com)
Rangel, who has criticized Obama's use of military force in Libya, attended the president's Harlem events. (dnainfo.com)