2016Final results
2016 election for U.S. Senate in Oklahoma
U.S. Senate · Oklahoma
James Lankford (R) won with 67.7% of the vote, defeating Mike Workman (D) by 43.2 points.
James LankfordRepublican · winner
67.7%980,892
Mike WorkmanDemocrat
24.6%355,911
Robert T. MurphyLibertarian
3.0%43,421
Sean BraddyIndependent
2.8%40,405
Mark T. BeardIndependent
1.9%27,418
1,448,047 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
Money in this race
Each line compares the two campaigns on one scale.
No DemocratJames Lankford
—
Raised by the campaign
$3M
—
Spent by the campaign
$2.8M
—
Cash on hand
$564.7K
Other candidates' campaigns: Sean Braddy $12.5K.
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016
The candidates
James Lankford (R)Mike Workman (D)
Also on the ballot: Robert T. Murphy (Libertarian), 3.0%; Sean Braddy (Independent), 2.8%; Mark T. Beard (Independent), 1.9%