In news from Washington, lawyers for Lewis “Scooter” Libby unveiled their apparent defense strategy Tuesday during opening remarks at his perjury and obstruction trial. Libby is the former chief of staff to Vice President Dick Cheney. He is accused of lying to investigators and a grand jury during the investigation of the outing of CIA operative Valerie Plame. On Tuesday, Libby attorney Theodore Wells Jr. said Libby was used as a scapegoat in order to protect top presidential aide Karl Rove. Wells said: “Karl Rove was the person most responsible that the Republican Party stayed in office. … He had to be protected. The person who was to be sacrificed, that’s Scooter Libby.”