PASADENA, Calif. — It's hard to turn off Meg Whitman.The most expensive campaign for governor in U.S. history – about $162 million and counting – is inundating California voters with an unprecedented array of TV and radio ads, glossy magazines, smartphone messages, Facebook videos, postcards and phone calls that will test how far a Republican dollar can go in a state Democrats often dominate.Read More... More on California Governor Race