Most election years, uninspired voters have little choice but to follow the example of W.C. Fields who said, “I never vote for anyone; I always vote against.” But not this year, and not in the GOP. Watching “Rudy McRomney” (as the frontrunners have sometimes been dubbed) debate in New Hampshire, it was hard to believe that as recently as 1996, the major contenders for the Republican nomination were Bob Dole and Pat Buchanan. If either of them had approached the stage Tuesday night, they would have been tackled by security and dragged from the building. The GOP field for 2008...