Liberals will blame Boosh! 
Certainly not Bush's fault there was a hurricane. Have been and will be hurricanes for millenia. I think people were looking, and placing the blame on the head of government who put his cronie in charge of FEMA and the subsequent debacle that ensued in New Orleans. So, pretty much the
response to a
known issue, a hurricane, is what people have issues with. An extremely large national disaster encompasses FEMA's responsibility and therefore the responsibility of the man in charge of that organization, extrapolated to the man who gave him the job. If my boss gives me a job, and I blow up the lab, we both get fired.
Just like they will point out that there are supplies sitting in trucks right now, with hundreds of drivers getting 800$ per day on taxpayer expense, because they can't figure out where to put them.