Primary may shut out Republicans from California U.S. Senate race

By Sharon Bernstein SACRAMENTO, Calif. (Reuters) - California voters on Tuesday are expected to choose two Democrats to face off against each other in the race to succeed Barbara Boxer in the U.S. Senate, shutting out Republicans in a sign of that party's diminished support in America's most populous state. State Attorney General Kamala Harris and U.S. Representative Loretta Sanchez will likely meet in what would be the state's first-ever single-party Senate election under a 2010 California law