👤 About WILLIAM SEAN BUCKNER
WILLIAM SEAN BUCKNER is a Republican candidate for U.S. Senate in Oklahoma’s 2026 federal election cycle. The campaign committee, BUCKNER FOR SENATE 2026, is registered in TULSA, OK, with BUCKNER, STEPHANY listed as treasurer. The campaign has not yet reported substantial fundraising in current FEC filings. The race’s incumbent is Republican MARKWAYNE MULLIN.
Bio auto-generated from candidate filings. Curated bios coming soon.
🔗 Where to learn more
💰 Campaign finance
No FEC filings reported yet for the 2026 cycle.
🏁 The race for U.S. Senate
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WILLIAM SEAN BUCKNER VIEWING
Republican
18 candidates have filed with the FEC for this race.
NONPARTISAN · SOURCED FROM CONGRESS.GOV, OPENFEC, SENATE & HOUSE CLERKS · UPDATED REGULARLY
2026 candidate profile
WILLIAM SEAN BUCKNER
Republican · Challenger
Running for: Oklahoma U.S. Senate
FEC pending
Total raised
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Cash on hand
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Spent
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FEC status
FEC filing
FEC IDS6OK04254
OfficeOklahoma U.S. Senate
PartyRepublican
See the full race
View every candidate, all fundraising totals, and the primary results for the Oklahoma U.S. Senate race.
🗳 2026 Election
U.S. Senate — Oklahoma
Primary: Jun 16, 2026 (In 6 days)
· General: November 3, 2026