How's this going to work, exactly?

The US effectively empties and destroys two of the major cities in which the Sunni Muslims reside, Fallujah and now Tal Afar, so that on the eve of the supposed national referendum on the proposed (and Shia- and Kurd-backed) constitution many Sunnis are in refugee status; and then the constitution isn't able to be printed up to be read and debated by the citizenry with but a month to go until the vote on it. And then, when, as is likely, the Sunnis can't muster enough votes to disapprove it, the constitution is adopted and acclaimed by the US as proof of democracy in action. Right. Just like in Florida and Ohio.