The likely victory of Gov. Arnold Schwarzenegger in next month's election could change the dynamics of California government and the way both national parties think about this mega-state. It has been a long time since a Republican presidential candidate won California: not since George H.W. Bush in 1988. And it had been almost as long since any Republican won major statewide office -- until Schwarzenegger won the special election of 2003. In 2005 he declared war on the Democratic legislature and the public-employee unions and forced a special election on four initiatives designed to cripple the unions' influence and strengthen...