In movies, a big star is insulated by protocol and precedence. Your big-time silver-screen colossus might get killed in a film, but not by the hands of some nondescript extra who casually shoots him with nary a thought. Alas, democratic politics aren't half so respectful of status: Last week Arnold Schwarzenegger got sand kicked in his face by millions of nondescript extras -- the California voters who rejected all four of the propositions he had backed. The Wall Street Journal's Peggy Noonan says "with each day a star is in politics he loses some of his star-glow, and if he...