Just to add to this... a libertarian ran as well and pulled thousands of votes from Bevin.
A Libertarian candidate will pull votes from both sides but more from the GOP. The Democrat won by 5000 votes but the Libertarian got 28,000 and I gotta think if there was no Libertarian Party candidate the Republican would have got 20,000 more and the Democrat 8000. For a Libertarian to get that many votes means there were a lot of people who didn't like either of the major party candidates.