That’s what Kim Kagan says in her excellent piece on the surge today in the Journal (noted in the Web Briefing):

The larger aim of the new strategy is creating an opportunity for Iraq’s leaders to negotiate a political settlement. These negotiations are underway. Iraqi Prime Minister Nouri al-Maliki is attempting to form a political coalition with Amar al-Hakim and Kurdish political leaders, but excluding Moqtada al-Sadr, and has invited Sunnis to participate. He has confronted Moqtada al-Sadr for promoting illegal militia activity, and has apparently prompted this so-called Iraqi nationalist to leave for Iran for the second time since January.