2016Flipped from DemocraticFinal resultsIncumbent defeated
2016 election for Iowa Senate District 46
Iowa State Senate · Iowa
Mark Lofgren (R) won with 56.7% of the vote, defeating Chris Brase (D) by 13.6 points, a seat Democrats won last time.
Mark LofgrenRepublican · winner
56.7%16,576
Chris BraseDemocrat · incumbent
43.2%12,615
29,230 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET