His term as U.S. Attorney in Little Rock expired six weeks ago, but Tim Griffin continued to purport to act as the Justice Department’s legate in the Arkansas capital notwithstanding widespread demands for his resignation. Today, however, he finally concedes that the gig is up, according to the Arkansas Times. Arkansas Senator Mark Pryor sees Griffin’s departure as a very positive sign. “Credibility is being restored to the leadership position at the U.S. attorney’s office,” said a spokesman in Pryor’s office. Griffin, a committed life-long Republican Party functionary, is widely expected now to assume a key role in the presidential campaign of former Tennessee Republican Senator Fred Thompson.