الحزب الإسلامي العراقي
Mutlaq campaigned against the constitution in the October 2005 referendum, and refused to join the other main Sunni Arab-led list, Iraqi Accord Front because that group's largest component, the Iraqi Islamic Party, had backed the new constitution, which Mutlaq rejected due to it granting federalism and autonomy to different regions, and also because it did not emphasise Iraq's Arab identity.