Here's a blogger who gets the story right,
It has come to light that all during the night on Friday, September 2, the president of the United States was forced to “negotiate” with Governor Blanco for the lives of the suffering and dying people of New Orleans. She feared that allowing the federal government to take control would make her administration appear as though it had failed. How she would be judged was more important to her than the lives of those people who were dying in the squalor. How many died as Blanco maneuvered to protect her reputation?
The Posse Comitatus Act prevents, by federal law, the president of the United States from sending federal troops into any state without the direct request of the elected governor of that state. A frustrated President Bush could only stand by and watch as the horror unfolded until he received the request for help. Despite the finger-pointing at President Bush, there was little that he could do until he was formally asked for assistance. No matter how loudly the liberals scream, they know full well that the president was helpless to do much of anything.
As the death toll rose and the animalistic behavior of some of those who chose to remain within the city became public knowledge, it was obvious that authorities needed to regain control. As the scenes from New Orleans, now a national disgrace, were being beamed around the world, a shameless Governor Blanco only cared about her own political image.
There is reason to believe that President Bush, running out of patience with Blanco by Saturday morning, used the only option that remained to him. It is being reported that Bush went around Blanco and utilized the Insurrection Act to federalize the National Guard and send in active military troops to take over the rescue and put down the lawlessness that had taken over New Orleans. The forces that Bush had poised to move into the city, swung into action. It was no accident that the major, organized rescues began when the sun came up on Saturday morning. At 6:30 AM, when the sky over New Orleans was suddenly filled with military helicopters and military convoys poured into the streets, they were there because of President Bush, not Governor Blanco.