2010Flipped from DemocraticFinal resultsIncumbent defeated
2010 election for Iowa House District 48
Iowa House of Representatives · Iowa
Chip Baltimore (R) won with 50.0% of the vote, defeating Donovan Olson (D) by 0.2 points, a seat Democrats won last time.
Chip BaltimoreRepublican · winner
50.0%5,384
Donovan OlsonDemocrat · incumbent
49.8%5,361
10,759 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET