It may be possible that consumer confidence may be a better indicator than polls regarding Mr. Bush’s performance.  For one thing, we are still at war and a good segment may not want to badmouth a sitting president at such a time.  But confidence about the future is a telling indicator.  Probably Bush’s minions will want to dismantle such an indicator pretty shortly as they have with all other things that might shed any light on their dark ops.
Confidence Sinks in September on Katrina  Yahoo News story.

…consumer confidence sank to 61.5 in September, the lowest since early March 2003, when confidence dropped to 61.4 as a nervous country hunkered down for the start of the
Iraq war.
September’s decline — the third straight month that confidence fell — followed a reading of 72.6 in August. The latest showing also underscored just how much consumers’ confidence has deteriorated compared with a year ago. In September 2004, consumer confidence was a robust 103.4.

So all the pres’s men managed to convince people that things were peachy keeno, even though violence was on the uptick in Iraq, but now, faced with disaster and no plans (as if the man understood plans!) people are finding out how bad the man is here at HOME.
Update [2005-9-9 13:32:6 by glitterscale]: Other polls showing Bush down as well.
Bush breaks through 40 percent floor