Quarry's Vote: A Quarry Novel, Book #5 (Unabridged‪)‬

When retired hitman Quarry turns down a million bucks to murder a presidential candidate, he becomes a "loose end" that the conspirators need to tie off. With his peaceful life in ruins, Quarry launches his own campaign - for vengeance. This audiobook is the fifth book in Max Allan Collins's cult classic Quarry Series. They don't come harder-boiled than Quarry.