2008Flipped from DemocraticFinal resultsIncumbent defeated
2008 election for Kansas House District 101
Kansas House of Representatives · Kansas
Joe Seiwert (R) won with 51.0% of the vote, defeating Mark R. Treaster (D) by 2.0 points, a seat Democrats won last time.
Joe SeiwertRepublican · winner
51.0%4,690
Mark R. TreasterDemocrat · incumbent
49.0%4,502
9,192 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 2008
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET