Nothing annoys certain of my fellow conservative intellectuals more than when I remind them, as on occasion I mischievously do, that the derogatory things they say about Sarah Palin are uncannily similar to what many of their forebears once said about Ronald Reagan. It's hard to imagine now, but 31 years ago, when I first announced that I was supporting Reagan in his bid for the 1980 Republican presidential nomination, I was routinely asked by friends on the right how I could possibly associate myself with this "airhead," this B movie star, who was not only stupid but incompetent. They...