Two post-speech polls have Bush dropping on Katrina

The big speech in the Big Easy was a big flop.

Think Progress has the daily tracking numbers from Rasmussen Reports. His poor rating rose from 37% to 41%.

Political Wire links to the polling from SurveyUSA. They say "a "can't win" dynamic is unfolding for the President." Disapproval rose from 52% to 56%.