I'd say Midwestern called that one right based on this article in Rolling Stone:
George W. Bush's presidency appears headed for colossal historical disgrace. Barring a cataclysmic event on the order of the terrorist attacks of September 11th, after which the public might rally around the White House once again, there seems to be little the administration can do to avoid being ranked on the lowest tier of U.S. presidents. And that may be the best-case scenario. Many historians are now wondering whether Bush, in fact, will be remembered as the very worst president in all of American history. [...]The rest of the article is well worth the read. It discusses Bush's failings in key areas: disastrous domestic policies, foreign-policy blunders and military setbacks, executive misconduct, crises of credibility and public trust.
In early 2004, an informal survey of 415 historians conducted by the nonpartisan History News Network found that eighty-one percent considered the Bush administration a "failure." Among those who called Bush a success, many gave the president high marks only for his ability to mobilize public support and get Congress to go along with what one historian called the administration's "pursuit of disastrous policies." In fact, roughly one in ten of those who called Bush a success was being facetious, rating him only as the best president since Bill Clinton -- a category in which Bush is the only contestant.
I almost feel sorry for him. The reality for George Bush is that he'll be alone in that rocking chair someday wondering where he went wrong.