The California Republican leadership is upset that Schwarzenegger has betrayed the party. All I can say is that they got what they had coming. They rallied behind a man with no political background, with almost no identifiably Republican principles, and with no qualifications for the office of governor, just because he had star power and he could get elected. To them having an "R" in the governor's column trumped principle.
They betrayed Tom McClintock, a real Republican with real principles who has put decades into serving California, by throwing their support behind a man whose loyalty was a matter of pure guesswork. And now the man who they betrayed McClintock for is betraying them.
What did they expect?