Even among the strongest advocates in Washington of the war in Iraq there is a sense of alarm these days, with harsh criticism directed particularly at the draft constitution, which they see as a betrayal of principles and a recipe for disintegration of the Iraqi state.

Expressions of concern among conservatives and former Iraqi exiles, seen also in the rising disillusionment of the American public, reflect a widening gap with the Bush administration and its claims of “incredible political progress” in Iraq.