Well an agreement to support democracy in the region therefore justifies Obama's decision to make military action without the consent of congress. It's in the 'national interest'. Plus Obama could just as easily justify his choice under R2P.
Do you not understand the concept of "illegality?" This has nothing to do with whether we have a "responsibility" to drop democracy on Iraq from fighter jets, protect some nebulous "national interest" millions of miles from our shores, or adhere to some abstract concept invented by the UN. You just keep bringing up random arguments that have nothing to do with what Paul is claiming: That Obama's conduct of the war violates the domestic law of the United States. Even if Obama's bombing campaign is in our "national interest" (whatever that is) or conforms to the meaningless ideals of UN bureaucrats, those things have no relevance whatsoever to whether or not his actions violate the War Powers Act (which they objectively do).
Just admit you believe that President has unlimited military authority and the WPA is meaningless (as Lief and Bedstuy have) instead of bringing up random stuff that has nothing to do with the President's authority under domestic law.