2020Final results
2020 election for Iowa Senate District 46
Iowa State Senate · Iowa
Mark Lofgren (R) won with 59.3% of the vote, defeating Chris Brase (D) by 18.7 points.
Mark LofgrenRepublican · winner · incumbent
59.3%18,479
Chris BraseDemocrat
40.6%12,653
31,157 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET