Several high level Republicans are withdrawing their endorsements of Donald Trump. There is a question I'd like to ask each of them. "When you heard what Trump said, where you even a little surprised?" My guess: if truthful, most of them would answer "no."
If you answered negatively, then he's still the same guy you were endorsing before the tape emerged. And the reason you have pulled your endorsement is to cover your own backside. It is virtue signaling vis-a-vis the electorate. An "I don't want to be associated with his crudity" response.
Friends, it will do you no good. You once endorsed him and everybody knew who he was when you did it. Pulling your endorsement now is closing the barn door after the horse is gone. Democrats will hang your former endorsement around your neck forever, repudiating it will do no good. Nobody will believe your "I'm shocked, shocked!" response, it's as phony now as it was at Rick's place in Casablanca.