An Iraqi man tears an advertising poster, calling for Iraqis to register for the constitutional referendum, as Iraqi Sunnis demonstrate against the draft constitution in the city of Ad Dawr near Tikrit.
It will be very difficult for Sunnis to support the constitution as it is, according to Ghassan Attiyah, director of the Baghdad think tank the Iraq Foundation for Development and Democracy.
Humam Hammoudi, who heads the constitutional drafting committee, has said three days may not be enough time to win Sunni support for the document, which was submitted late Monday.
Attiyah, a Shiite, predicts that Sunnis will not be able to muster the votes to defeat the draft document in a national referendum scheduled for mid-October.
President Bush Tuesday applauded the progress Iraqis have made in framing a draft constitution, emphasizing that the country's future lies in one of two directions: either democracy or violence.