 Miller's signature accomplishment as Treasurer was the establishment of Kentucky's Prepaid Tuition Program, which signed up more than 10,000 families.On December 14, 2006, Miller announced his intentions to run for Governor of Kentucky with Jefferson County Attorney Irv Maze as his running mate.On May 7, 2007, a campaign spokesperson announced that Miller would drop out of the race and endorse the campaign of Steve Beshear.