(Reuters--LITTLE ROCK, Arkansas--An Arkansas judge ruled unconstitutional for the second time in about a week a new law requiring voters to show a photo ID, but said on Friday there was not enough time to prevent officials from applying the law at primary elections this month. Pulaski County Circuit Court Judge Tim Fox said he was staying his order because to do otherwise would create "turmoil" in thousands of precincts. Last week, he said the law was "void and unenforceable." Nearly three dozen U.S. states have voter identification measures, according to the National Conference of State Legislatures. Many Republicans have...