What more than a decade ago was believed by Americans to be the omnipotence of the United States in the Middle East and Central Asia (the "Greater Middle East" as the Bush administration called it) is today being replaced by a fear that the U.S. not only has decisively lost its power in the region, but is also responsible for why everything seems to be going wrong.

President Barack Obama is being accused by some Republican members of Congress of responsibility not only for the jihadist reconquest of the twice-martyred city of Fallujah in Iraq, but also for the jihadist resurgence elsewhere.

What did he do in Iraq?