 Corbett left office in 1997 and again went into the private sector, first as general counsel for Waste Management, Inc., then opening his own practice.In 1995, Corbett was appointed to the position of State Attorney General by Governor Ridge to fill the remainder of the term left by the conviction of Ernie Preate.As a condition of his Senate confirmation, Senate Democrats required him to pledge that he would not run for re-election in 1996.