Oklahoma U.S. Senate S-OK-2026 · Class 2 · Regular cycle

Open in research → Editorial as of Apr 22 · FEC through Mar 31
General 2026-11-03
R Primary 2026-06-16
Runoff 2026-08-25
Filing Deadline 2026-04-03 (held)
Cook Political Report
Solid R
As of date pending
Sabato's Crystal Ball
Safe R
As of date pending
Polymarket
R 93¢
D 6¢
Refreshed today
R+17
Cook PVI
Incumbent
Alan S. Armstrong
Republican · appointed not running
▸ Watch

Regular Class 2 race. Markwayne Mullin (R) resigned March 23, 2026 to become DHS Secretary. Gov. Stitt appointed Alan Armstrong (former Williams Cos. CEO) on March 24, 2026 as a placeholder; Armstrong signed an agreement not to run in 2026. Kevin Hern (US Rep, OK-01) is the Republican frontrunner. R+17 PVI.

Top contenders

Kevin Hern
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$8,284,048
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04247/
William Buckner
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Jim Priest
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$203,273
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04197/

Republicans

Kevin Hern
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$8,284,048
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04247/
Brian Ragain
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$0
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04262/
Gary Ty England
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Nick Hankins
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat. Federal filing not yet detected in current FEC bulk extract.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
William Buckner
Republican
● Candidate

Republican candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Markwayne Mullin
Republican
● Filed with FEC

Federally registered candidate for the Oklahoma U.S. Senate seat. No editorial profile available.

FEC Receipts — Cycle Total
$3,181,184
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S2OK00186/

Democrats

Jim Priest
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$203,273
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04197/
N'Kiyla Thomas
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$39,009
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04163/
12-wk spend
Troy Green
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$22,600
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04171/
12-wk spend
Ervin Yen
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
R.O. Joe Cassity Jr.
Democrat
● Candidate

Democrat candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)

Other parties

Ron Meinhardt
Independent
● Candidate

Independent candidate for the Oklahoma U.S. Senate seat.

FEC Receipts — Cycle Total
$6,188
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6OK04205/
Curtis Stinnett
Independent
● Candidate

Independent candidate for the Oklahoma U.S. Senate seat. Federal filing not yet detected in current FEC bulk extract.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Sevier White
Libertarian
● Candidate

Libertarian candidate for the Oklahoma U.S. Senate seat. Federal filing not yet detected in current FEC bulk extract.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)

6 additional FEC filers excluded as long-tail (no editorial listing, not the seat incumbent, and under $1M raised). They remain in the database and can be surfaced via the FEC API directly.