Mine came when they pushed through the Patriot Act. I knew then it would be abused and aimed at Americans while the PC Crowd would continue to give a pass to every bad element that wanted to come to this once great country to trash it.
It only got worse from there. W's constant move to the left with things like Medicare Perscription Drug coverage showed me the R party was done being anything other than "lesser of the two Evils".
Then there was W's smart assed comments on Immigration with his "see you at the signing" smirk. With his leaders of Congress stuck behind him with their head up his ass. His "Compassionate Conservative" mantra was nothing more than Socialism lite.
The one thing that Bush did well, was to illustrate how impossible it is to preserve a people, while trying to be always "politically correct." Your rules of engagement rule out the possibility of success.