SACRAMENTO, Calif. - Gov. Arnold Schwarzenegger enters 2006 in a politically weakened position few could have imagined when he took office a little more than two years ago, the result of a disastrous shift to the right in a state dominated by Democrats and independents. Facing re-election, the Republican governor has begun a swift transformation since November, when California voters rejected all four of his "year of reform" measures. The proposals included a spending cap, redistricting changes and restrictions on fundraising by public employee unions that Democrats had railed against. "A move back to the center is essential," said Gary...