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2026 candidates we're tracking in OK-4
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Tom Cole
Republican
Incumbent
Tom Cole is the Republican candidate for Oklahoma's 4th Congressional District on the November 3, 2026 ballot, per the Oklahoma State Election Board's 2026 candidate list and official primary results. Tom Cole is the sitting member, per the Legislature's roster. Cole is a fifth-generation Oklahoman serving his tenth term in Congress after first winning election in 2002, per his official House biography. He is recognized in the House for his work on biomedical research funding and tribal government issues, per the same source. No campaign website was found as of September 7, 2026.
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Mitchell Jacob
Democratic
Mitchell Jacob is the Democratic candidate for Oklahoma's 4th Congressional District on the November 3, 2026 ballot, per the Oklahoma State Election Board's 2026 candidate list and official primary results. Jacob is an Army veteran who served five and a half years as a cryptologic linguist, including a 2020 deployment to Syria, per his campaign site. A father of five and fourth-generation Oklahoman, he graduated from the University of Oklahoma College of Law in 2025 and now works as a public defender, per the same source.
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Rocco Bonacci
Independent
Rocco Bonacci is the Independent candidate for Oklahoma's 4th Congressional District on the November 3, 2026 ballot, per the Oklahoma State Election Board's 2026 candidate list and official primary results. Bonacci is a disability community advocate from Lawton, per KOSU's roundup of 2026 Oklahoma congressional candidates. No campaign website was found as of September 7, 2026.
About this race
Oklahoma's 4th Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The Oklahoma primary is Tuesday, June 16, 2026 (runoff Tuesday, August 25, 2026 if needed), and the general election is Tuesday, November 3, 2026.