2016Final results
2016 election for Kansas Senate District 28
Kansas State Senate · Kansas
Mike Petersen (R) won with 51.4% of the vote, defeating Keith Humphrey (D) by 2.9 points.
Mike PetersenRepublican · winner · incumbent
51.4%9,915
Keith HumphreyDemocrat
48.5%9,353
19,302 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