FILE - In this Oct. 23, 2012, file photo, Republican donor Andy Miller Jr., front, and brother Tracy Miller listen to proceedings at a meeting of the Tennessee Registry of Election Finance in Nashville, Tenn. State Sen. Mark Green, a leading contender for governor in 2018, says he is re-evaluating his financial ties to the Millers after they agreed in September 2016 to pay $7.8 million to settle allegations of defrauding a federal military health care program (AP Photo/Erik Schelzig)