2022Final resultsIncumbent defeated
2022 election for Colorado Senate District 15
Colorado State Senate · Colorado
Janice Marchman (D) won with 50.6% of the vote, defeating Rob Woodward (R) by 1.2 points.
Janice MarchmanDemocrat · winner
50.6%43,068
Rob WoodwardRepublican · incumbent
49.4%42,054
85,122 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET