There is a site called Dr.Pollkatz which plots the Bush approval ratings with seperate colors for every pollsters.
The graphshaven't been updated since the end of 2003, but they do allow to compare the bias of the pollsters. Based on these graphs, PEW has a general bias
in favor of Bush. It tends to produce higher approval ratings and lower disapproval ratings than most competitors, though its bias isn't quite as strong as FOX's.
Fedral, would you mind doing some research before the next time you make claims like this? "Using their misleading and skewed data is like using data from the Ku Klux Klan website to find out what is going on in the African American community". You'd be doing the conservative viewpoint a favor.