2010Flipped from DemocraticFinal results
2010 election for Oklahoma Senate District 4
Oklahoma State Senate · Oklahoma
Mark Allen (R) won with 51.3% of the vote, defeating Neil Brannon (D) by 2.7 points, a seat Democrats won last time.
Mark AllenRepublican · winner
51.3%9,974
Neil BrannonDemocrat
48.7%9,451
19,425 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET