Un-bunching my panties slightly, given this Obama quote: "no imminent, direct threat"

""I put it before Congress because I could not honestly claim that the threat posed by Assad's use of chemical weapons on innocent civilians and women and children posed an imminent, direct threat to the United States," he said in his remarks at the end of the summit."
http://www.theguardian.com/world/2013/sep/06/obama-alliance-assad-chemical-weapons

Obama cannot say this and then disregard a no vote, if I understand your war powers act.