As Atrios aptly notes

As Atrios aptly notes, poll numbers showing President Bush became less popular after his speech should not surprise anyone. President Bush is by any reasonable measure extremely unpopular. Not unpopular — extremely unpopular. Mid-low forties is unpopular. Mid-low thirties is extremely unpopular. Almost, but not quite unprecedented in the modern era for such a sustained period of time. The Iraq War is one of the few things that rivals his unpopularity. And the public, after signaling deep opposition to the war at the polls, sees this extremely unpopular president come before them to announce that he’s expanding the really unpopular war. And if that’s not enough he has the quavering look of a degenerate gambler begging his wife, half cockily half desperately, for one more chance.

Shocking that it didn’t come off well.