No.
GWB did not lie.
Iraq not only had WMD but also used them and many chemical warheads were later found Iraq after coalition forces liberated that country.
If chemical weapons are considered WMD, GWB was definitely not lying.
Old wmd from the Iran/Iraq war[that later the Bush admin didn't take responsibility in medically helping our boys] was not reason enough to 'invade' Iraq, nor was the destability of the region weighed against Iraq even having new weapons.
No matter how bad SH was, he still was more of a stabilizing force than we ever could have become, and a natural bulwark against Iran.
Nor was the costs of the invasion ever properly explained or reasoned. We will be paying for those miscalculations for generations.
Not only that but there has been no public review of the policies and practices of the intelligence failure in supporting such a intervention, nor has anyone been held accountable for such actions. As with the typical government actions.