There is no good future outcome for Iraq whether we stay or leave, but here is a report in the Washington Post that describes how bad it is right now.
With the U.S. military in Iraq it is currently a disaster. Trisecting the nation will be worse, leading to a great deal more ethnic cleansing. If the U.S. leaves Iraq will almost certainly become a failed state that spreads its violence to the nations around it.
I wonder what the Baker-Hamilton Commission could possibly say that will change the prospect there?
Bush invaded Iraq four years ago with the intent of creating a democratic nation based on free market principles that would establish a beacon for the other nations around it in the Middle East. Instead it appears that Bush's legacy will be a failed state spreading its cancer of destruction to the nations around it and perhaps to the rest of the world.
The U.S. and the entire world will spend a generation trying to recover from the series of disasters that the Bush administration and the Republican Party in America have inflicted on all of us.