2010Final results
2010 election for Iowa Senate District 43
Iowa State Senate · Iowa
Joe M. Seng (D) won with 62.2% of the vote, defeating Mark J. Riley (R) by 24.6 points.
Joe M. SengDemocrat · winner · incumbent
62.2%9,894
Mark J. RileyRepublican
37.7%5,991
15,896 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