Have liberals told the lie that "Bush lied" so often that they now believe it?

Saddam Hussein used gas on his own people so there was good reason to believe what he was telling the world about having WMD. Liberals seem to have selective memory and ignore the fact that nearly every Democrat made speeches, telling Bush to go into Iraq to get the WMD. When I post direct quotes from Pelosi, Reid, Kerry and both Clintons, among many others, our liberal friends give me thumbs down. I'm not sure if they do that because they don't believe the direct quotes or that they just don't want anyone to tell the truth.