If Republicans want to build on Scott Brown's victory in Massachusetts' Senate race in historically blue California this fall, they'll have to overcome the state GOP's inability to win over ethnic voters, or hope those voters stay home. That's the implication of findings from a new Field Poll of California voters released this week in collaboration with New America Media. The poll, which was conducted in six languages across California's white, black, Hispanic, Chinese, Korean, and Vietnamese communities, found that while incumbent Sen. Barbara Boxer (D-Calif.) and likely Democratic gubernatorial nominee Jerry Brown hold modest leads or trail potential Republican...