 In 1993, Corbin defeated incumbent Richmond Mayor George Livingston, who was seeking re-election.In 1998 the city's mining ordinance expired leaving the city's quarries and abandoned mines regulation up to the state, something councilman Tom Butt tried to ameliorate in 2006 with a new ordinance which caused conflicts with the city attorney John Eastman.He was a councilman from 1982 to 1993 and ran for mayor in 2010 unsuccessfully against Gayle McGlaughlin who won.