UPDATE: Early returns show tight race in KY GOP primary
Agriculture Commissioner James Comer and former state Supreme Court Justice Will T. Scott lagged behind both on Tuesday.
All four had waged a furious campaign in an unusually crowded field for a Republican primary in a state that has long been dominated by Democrats.
The campaign was overshadowed by allegations from a former girlfriend that Comer had emotionally and physically abused her while the two dated in college more than two decades ago.
Comer and Bevin quickly used the allegations to paint Heiner as a dirty campaigner, changing the dynamic of the race just weeks before voters went to the polls.