This could be compared to Willie Horton, but it’s not.
With Willie Horton, Dukkakis supported a furlough program to rehabilitate people. He had no other connection with the guy. With Wayne Dumond, Mike Huckabee specifically lobbied for his release, because the victim was a relative of Bill Clinton, and the daughter of a Clinton contributor.
According to Murray Waas, who has also been all over the Plame affair, Huckabee went so far as to imply that he would grant clemency if Drumond was not paroled.