Regarding the entire vote on the Iraqi referendum: Why is it that Parliament approved the process whereby a minority may adopt a constitution?
The Kurds made certain to have an escape route if the Iraqi Constitution did not meet their expectations - a super majority vote against the document in three provinces would enable them to reject the Constitution. Sixty-six percent of three provinces could vote down the adoption of the document and put it back in the hands of a newly elected Parliament.
What that equates to is that a mere thirty-four percent of the entire country (spread out equally across every province) may adopt the Constitution. It is quite obvious that such an event will never occur, but it alludes to the main point, that a minority may approve a founding document for a country.
It comes down to the provinces of Anbar, Salahuddin, and Ninevah, and whether proponents of the Constitution could must 34% or higher.
The democratic slogan of "majority rule" never met a stranger bedfellow in Iraq.