Hillary Clinton targeted in ad from group tied to Koch brothers

Democratic presidential front-runner Hillary Rodham Clinton on Friday makes her first appearance in a negative advertisement funded by the wealthy Republican donors tied to billionaires Charles and David Koch. A 30-second ad aimed at Internet users in South Carolina and Florida shows headlines about the number of veterans who have died while awaiting health care. Then it shows a recent MSNBC interview with Clinton, who said of problems at the Department of Veterans Affairs, “It’s not been widespread as it…