The White House now predicts Iraq's new constitution will be approved by Parliament before the week is out.
That's after two straight weeks of missed deadlines.
Bush told veterans in Salt Lake City Monday that Americans know from their own history that hammering out a constitution is "a difficult process that requires debate and compromise."
A White House statement says the draft shows "impressive progress" by Iraqi politicians. It glosses over the major disputes that led Sunni politicians to block a final vote, calling such disputes "the essence of democracy."