2010Final results
2010 election for Indiana Senate District 4
Indiana State Senate · Indiana
Karen Tallian (D) won with 54.4% of the vote, defeating Shawn Olson (R) by 8.7 points.
Karen TallianDemocrat · winner · incumbent
54.4%18,888
Shawn OlsonRepublican
45.6%15,857
34,745 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