2018Final results
2018 election for Washington Legislative District 4-2
Washington House of Representatives · Washington
Bob McCaslin (R) won with 61.9% of the vote, defeating Mary May (D) by 23.8 points.
Bob McCaslinRepublican · winner · incumbent
61.9%42,613
Mary MayDemocrat
38.1%26,254
68,867 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 2018
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET