American forces in Iraq announced Monday ambitious public-works plans to win support in Sadr City.
Bush announced Thursday that Army tours will be cut to 12 months.
In an interview, a member of the Islamic Army of Iraq speaks of his group's long-term goals.
Petraeus and Crocker shared the stage with presidential hopefuls, who all had much at stake.
While the Sunni heartland has largely turned against Al Qaeda in Iraq, insurgents are still doing battle in the 'wild' reaches of the province.
Democrats hope this week's hearings can shift the war's course. GOP wants Clinton, Obama to acknowledge its gains.
Democrats say an overemphasis on the war in Iraq has come at the expense of Afghanistan and has allowed Al Qaeda to regroup in that region.
Gen. David Petraeus and Ambassador Ryan Crocker will describe Iraq's fragile state this week on Capitol Hill.