It took Republican gubernatorial candidate Meg Whitman less than two weeks to hang up her hard line on immigration and to go on Spanish-language TV catering to the Latino vote. It was but one step toward middle ground for a candidate pulled right in the primary. Forget that endorsement from former House Speaker Newt Gingrich, and those robo calls from former Vice President Dick Cheney. And don't expect to hear any more from former Gov. Pete Wilson, who pleased GOP voters in the Republican primary when he said Whitman would be "tough as nails on illegal immigration," but who is...