I have little to say about this
...Hitchens nails it pretty well.
First he quotes the Washington Post, ostensibly "correcting" Bush:
But in trying to set the record straight, [Bush] asserted: "When I made the decision to remove Saddam Hussein from power, Congress approved it with strong bipartisan support."
The October 2002 joint resolution authorized the use of force in Iraq, but it did not directly mention the removal of Hussein from power.
Here's Hitchens' retort:
A prize, then, for investigative courage, to Milbank and Pincus. They have identified the same problem, though this time upside down, as that which arose from the passage of the Iraq Liberation Act, during the Clinton-Gore administration, in 1998. That legislation—which passed the Senate without a dissenting vote—did expressly call for the removal of Saddam Hussein but did not actually mention the use of direct U.S. military force.
Let us suppose, then, that we can find a senator who voted for the 1998 act to remove Saddam Hussein yet did not anticipate that it might entail the use of force, and who later voted for the 2002 resolution and did not appreciate that the authorization of force would entail the removal of Saddam Hussein! Would this senator kindly stand up and take a bow? He or she embodies all the moral and intellectual force of the anti-war movement.