1978Final results
1978 election for Maryland Legislative District 10
Maryland State Senate · Maryland
John J. Bishop (R) won with 61.0% of the vote, defeating David J. Preller (D) by 22.0 points.
John J. BishopRepublican · winner · incumbent
61.0%15,205
David J. PrellerDemocrat
39.0%9,729
24,934 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET