2018Final resultsIncumbent defeated
2018 election for Kentucky Senate District 4
Kentucky State Senate · Kentucky
Robby Mills (R) won with 50.6% of the vote, defeating J. Dorsey Ridley (D) by 1.3 points.
Robby MillsRepublican · winner
50.6%19,057
J. Dorsey RidleyDemocrat · incumbent
49.4%18,573
37,630 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET