George W. Bush, September 6, 2005:

What I intend to do is lead a -- to lead an investigation to find out what went right and what went wrong. And I'll tell you why. It's very important for us to understand the relationship between the federal government, the state government and the local government when it comes to a major catastrophe. And the reason it's important is, is that we still live in an unsettled world. We want to make sure that we can respond properly if there's a WMD attack or another major storm. And so I'm going to find out over time what went right and what went wrong.

The New York Times, January 25, 2006:

The Bush administration, citing the confidentiality of executive branch communications, said Tuesday that it did not plan to turn over certain documents about Hurricane Katrina or make senior White House officials available for sworn testimony before two Congressional committees investigating the storm response. . .

In response to questions later from a reporter, the deputy White House spokesman, Trent Duffy, said the administration had declined requests to provide testimony by Andrew H. Card Jr., the White House chief of staff; Mr. Card's deputy, Joe Hagin; Frances Fragos Townsend, the domestic security adviser; and her deputy, Ken Rapuano.

Mr. Duffy said the administration had also declined to provide storm-related e-mail correspondence and other communications involving White House staff members.