The Supreme Court turned down an appeal Monday that sought to open U.S. presidential elections to voters in Puerto Rico. The court's action, taken without comment, is the latest setback in a long-running legal fight over voting rights of residents of the U.S. territory. Attorney Gregorio Igartua, who filed the appeal, said that "for 107 years and 22 presidential elections since Puerto Rico became part of the United States, the American citizens of Puerto Rico" have been unfairly treated. He told justices that the residents have "an inferior type of American citizenship." The 1st U.S. Circuit Court of Appeals had...