Tired and angry people stranded at the convention center in New Orleans welcome a supply convoy carrying food, water and medicine.
President Bush visits Alabama, Mississippi and Louisiana, and later signs a $10.5 billion disaster relief bill.
The U.S. Army Corps of Engineers estimate it will take 36 to 80 days to drain the city.
Texas officials say nearly 154,000 evacuees have arrived there.
Members of the Congressional Black Caucus criticize the pace of relief efforts, saying response was slow because those most affected are poor.