The “Rebel” Terrorists had, in their possession, in Ghouta, a stockpile of Military Grade Chemical Weapons indistinguishable from the chemical weapons Assad was accused of using, at least a month before this latest attack.
When Assad is winning in Syria taking back ISIS-held land, why would he drop a chem-bomb?
As meaning that I don't think Assad was responsible. And the rebels know that McTreason has their back and they drop the chem-bombs when they get confirmation from their buddy in the Senate.