Arnold Schwarzenegger is in Washington today, and the difference between the two coasts, he'll find, is a good deal greater than that between fire and rain. In California, the governor-elect is hailed as the Republicans' Great White (or, through the miracle of modern tanning, Orange) Hope. The first Republican gubernatorial candidate to proclaim himself pro-choice, anti-assault weapon and anti-homophobic, Schwarzenegger exhibited a crossover appeal that the GOP hadn't seen since Ronald Reagan invented the Reagan Democrats. Schwarzenegger won the support of one-third of the union members who voted, nearly a third of the Latinos, a fifth of Democrats and liberals, and even 17 percent of those voters who disapproved of George W. Bush's performance as president. With what looks to be a close presidential election approaching, Schwarzenegger's brand of moderation would seem to have a lot to commend it. Imagine his discombobulation, then, to find himself in the capital city, where his party...