The charter is vague to the point of vacuousness in its most basic proclamations. Article 2 reads:

Islam is the official religion of state and a fundamental source for legislation.
(a) No law may contravene the essential verities of Islamic law.
(b) No law may contravene the principles of democracy.
(c) No law may contravene the rights and basic liberties enumerated in this constitution.

Actually, by the rules as listed here, they're trying to build a government which is proscribed from doing anything. Weimar Republic anyone?

Articles of Consternation - Iraq's infuriatingly vague constitution. By Fred Kaplan