In the sense that the President has the ultimate responsibility - of course he is charge. But there are plenty of things that happen in our vast web of government (good and bad) that he is never aware of. I'm not making a judgement with regard to this incident. But it would stand to reason that FEMA blundered this and the President found out after the fact. Wouldn't surprise me.

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Bush Approval Rating 32%
Democrat Controlled Congress Approval Rating 18%