when an Iraqi journalist hurled his shoes at Mr. Bush’s head and denounced him on live television as a “dog”

BAGHDAD — President Bush made a valedictory visit on Sunday to Iraq, the country that will largely define his legacy, but the trip will more likely be remembered for the unscripted moment when an Iraqi journalist hurled his shoes at Mr. Bush’s head and denounced him on live television as a “dog” who had delivered death and sorrow here from nearly six years of war.