Don’t call it “Iraq.” That was never a country and certainly isn’t now. Sometimes it was Turkish; mostly it was Iranian, and so it will probably be in a few weeks. But Iran won’t enjoy its meal unless it gains the maturity to cut a fair deal with the minority Sunnis. Saudi Arabia and Israel will do everything in their power to prevent such a stabilization of the region in Iran’s favor. It is in the US national interest to work very hard to persuade Iran to offer moderate, secular Sunnis a deal they cannot refuse.
Washington needs to coordinate with Tehran to force Maliki out (unlikely) or persuade him essentially to create a multi-sect government of national unity. As long as the Shi’a of Mesopotamia insist on a Shi’i dictatorship that apes Saddam’s old Sunni dictatorship, they have no hope of anything but a Shi’i semi-autonomous province inside Greater Iran–facing constant threat from a crusading Salafi terrorist state extending from the middle of Syria to Fallujah. That is not good for the US, not good for the land of the Shi’i shrines, and not good for Iran. It is not even good for Saudi Arabia because a Salafi victory will certainly backfire on the Saudi state. Only al Qu’aida, some extremist Iranian IRGC generals, and the Zionist rightwing expansionists will benefit (and then perhaps only temporarily).
So Washington needs to cooperate with (not fall in love with, not trust, not bow down to…just work with) Tehran if possible and talk to Tehran every day, calmly and precisely, offering positive-sum deals because it is in the US national interest to do so.
Update: And the very next day the Wall St. Journal reported that the Obama Administration was signalling that Maliki was part of the problem and that an ethnically inclusive Iraqi regime was needed! Meanwhile, Sour Grapes Cheney, who still has of course not been given his day in court, snipes from the sidelines, trying to provoke a repeat of the 2003 disaster. Obama effectively pardoned Cheney, along with the rest of the Neo-Con war gang; the least he could do is admit his wrongdoing.