SAN FRANCISCO - Republican Senate candidate Bill Jones railed on Monday against a ballot measure that would grant non-citizens here the right to vote in school board elections, calling it a "slap in the face" to U.S. citizenship and the country's immigration laws. Speaking on the steps of San Francisco City Hall, the former secretary of state said the charter amendment would violate the California Constitution and erode public confidence in the electoral process. He said encouraging immigrants to become citizens is the best way to expand voter participation. "I will vehemently oppose any attempt to grant Californians' precious right...