2018Final results
2018 election for Maryland Legislative District 34
Maryland State Senate · Maryland
Bob Cassilly (R) won with 50.1% of the vote, defeating Mary-Dulany James (D) by 0.4 points.
Bob CassillyRepublican · winner · incumbent
50.1%24,445
Mary-Dulany JamesDemocrat
49.7%24,256
48,788 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET