At a fundraiser on Sep 12, Hillary Clinton described the federal response to Katrina as "total breakdown in leadership" at the White House:
"How could we, as Americans, have let this happen?" she fumed to donors, in quotes picked up by the New York Post.
The top Democrat also cited Katrina to undermine Bush's image as a strong guardian of national security, saying the, "We've had four years to fix [our emergency response]" - a clear reference to the just-passed 9/11 anniversary.
The former first lady said that the Bush administration's failed Katrina response would leave a "deep and lasting scar that we have to look at honestly."