The U.S. today began bombing targets inside Syria, in concert with its lovely and inspiring group of five allied regimes: Saudi Arabia, Bahrain, United Arab Emirates, Qatar, and Jordan.
The utter lack of interest in what possible legal authority Obama has to bomb Syria is telling indeed: Empires bomb who they want, when they want, for whatever reason (indeed, recall that Obama bombed Libya even after Congress explicitly voted against authorization to use force, and very few people seemed to mind that abject act of lawlessness; constitutional constraints are not for warriors and emperors).
It was just over a year ago that Obama officials were insisting that bombing and attacking Assad was a moral and strategic imperative. Instead, Obama is now bombing Assad's enemies while politely informing his regime of its targets in advance. It seems irrelevant on whom the U.S. wages war; what matters it that it will be at war, always and forever.