"so it's not surprising that those who are left are mostly black"
so it's not suprising that Bush let them there!
Nobody left them there. They left themselves there. And the city decided not to physically organize an evacuation before the storm of the 100,000 or so who didn't get themselves out because they didn't have a car.
So why is it the president's fault when the city and the state decided they couldn't move them?
Is the president supposed to override the power of a governor when it's the governor's call?
If she wanted the president to be responsible, she would have had to let Fema take over. And she didn't want that. She wanted Fema to do what her people said. So, on her head be it.