2018Final results
2018 election for Idaho Legislative District 21
Idaho State Senate · Idaho
Clifford R. Bayer (R) won with 57.8% of the vote, defeating Dawn Pierce (D) by 21.2 points.
Clifford R. BayerRepublican · winner · incumbent
57.8%12,275
Dawn PierceDemocrat
36.6%7,776
Joe EvansIndependent
5.6%1,187
21,238 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