Complaining of "personal political attacks," Hollywood director Rob Reiner resigned Wednesday as chairman of a statewide preschool commission he helped create that's under scrutiny for $23 million in advertising spending. Just two weeks ago, Reiner dismissed suggestions that he should step down from the California First 5 Commission, which has collected nearly $4 billion in tobacco taxes to fund early childhood programs. "Everything I've done is completely legal," he said at the time. But Reiner called Gov. Arnold Schwarzenegger over the weekend and resigned, said Margita Thompson, a Schwarzenegger spokeswoman. In a letter to the governor Wednesday, Reiner said, "We...