The Hell Candidate is a novel written by Graham Masterton as Thomas Luke. It was first published in 1980.
Description[]
They said Hunter Peale didn't have a hope in hell of getting elected. They were wrong...
He was a kindly, moderate man - with a less than moderate chance of winning. Then it all began to change...
What power did Peale now have that brought men to their knees in abnormal pain - and made women writhe with unholy pleasure? The answer froze the spirit like a chill, rancid breath from the foul grave-stench mouth of Hell - for Peale had entered into a monstrous pact with none other than the Prince of Darkness himself...