Sarah Palin's announcement of her resignation as governor of Alaska may be the end of her political career or, as some speculate, the real beginning. What seems clear is that Palin is not conservatism's new hope but its dead end. In recent days, this has been amply confirmed by the arguments of Palin defenders, focused less on her presumed merits than on her presumed injuries at her enemies' hands.Thus, Ross Douthat, the new conservative voice at the New York Times, hails Palin as Everywoman—living proof you can aspire to the White House without an Ivy League degree—and deplores her abuse...