What principle does Rocklin Rep. John Doolittle say he'll "fight to the death" to defend? Political self-preservation. He's one of the influential California congressmen more interested in incumbency than in the public good of redistricting reform. But the reform's goal is more effective government, not the protection of parties or incumbents -- something not all congressmen understand, apparently. Doolittle, like fellow Republican David Dreier of San Dimas, opposes Gov. Schwarzenegger's plans to change how the state draws political districts. They worry it might cost the state as many as four Republican seats in Congress, and not coincidentally, make their own...