2018Final results
2018 election for Iowa House District 12
Iowa House of Representatives · Iowa
Brian Best (R) won with 65.7% of the vote, defeating Peter Leo (D) by 31.5 points.
Brian BestRepublican · winner · incumbent
65.7%8,458
Peter LeoDemocrat
34.2%4,402
12,865 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