I'm not saying he isn't part of the problem. Hell, I don't even know who he is. But a congressman has little to no power and/or authority with regards to this situation.
I disagree. He probably worked long and hard to get a couple pet earmarks in the recent highway bill, instead of trying to get federal funds for disaster planning.
Unless I hear he was extremely vocal about the lack of planning in NOLA (and his district includes part of the metro area), IMO he didn't show any leadership in trying to prevent this problem from happening. A Congressman can play a lot of hardball with local and state governments and use the bully pulpit to shame them into acting.