More than twenty years ago a maverick political scientist named Willmoore Kendall predicted the triumph of conservatism. Upon the 1963 publication of Kendall's The Conservative Affirmation, his former Yale student William F. Buckley, Jr. called him "one of the most superb and original political analysts of the 20th century," but even Buckley shook his head at what appeared to be Kendall's "baffling optimism." During the 60's, Kendall...