2010Final results
2010 election for Maryland Governor
Governor · Maryland
Martin O'Malley (D) won with 57.4% of the vote, defeating Robert Ehrlich (R) by 14.8 points.
Martin O'MalleyDemocrat · winner
57.4%1,044,961
Robert EhrlichRepublican
42.6%776,319
1,821,280 votes
Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse)Updated Oct 5, 2026, 12:23 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse)Updated Oct 5, 2026, 12:23 AM ET