Critics often point to his handling of the Iraq War, specifically the failure to find weapons of mass destruction after claiming they were in Iraq, as well as Bush's handling of tax policy, Hurricane Katrina, climate change and the 2008 financial crisis, as proof that he was unfit to be president.[473][474][475] Ben Ferencz, former chief prosecutor for the United States Army at the Nuremberg Trials, has stated that Bush likely committed war crimes in relation to the Iraq War.[476][477][478]
Several historians and commentators hold that Bush was one of the most consequential presidents in American history. Princeton University scholar Julian Zelizer described Bush's presidency as a "transformative" one, and said that "some people hate him, some people love him, but I do think he'll have a much more substantive perception as time goes on".[479] Bryon Williams of The Huffington Post referred to Bush as "the most noteworthy president since FDR" and said the Patriot Act "increased authority of the executive branch at the expense of judicial opinions about when searches and seizures are reasonable" as evidence.