2020Final results
2020 election for Oklahoma's 4th District
U.S. House · Oklahoma
Tom Cole (R) won with 67.8% of the vote, defeating Mary Brannon (D) by 39.0 points.
Tom ColeRepublican · winner
67.8%213,096
Mary BrannonDemocrat
28.8%90,459
Bob WhiteLibertarian
3.4%10,803
314,358 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mary BrannonTom Cole
$3K
Raised by the campaign
$1.8M
$6.6K
Spent by the campaign
$1.8M
$1.7K
Cash on hand
$1.3M
Campaign money: FEC, through Dec 30, 2020; FEC, through Dec 31, 2020.
Source: FEC campaign filingsUpdated Dec 31, 2020