OK-04 House winner?
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AI Analysis
Trader mode: Actionable analysis for identifying opportunities and edge
About This Event
OK-04 If the House member sworn in for OK-04 for the term beginning in 2027 is a member X then the market resolves to Yes. This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.
Current Market Outlook
Kalshi traders are pricing a Republican win in Oklahoma's 4th Congressional District at 96%. This is about as close to a sure thing as prediction markets get. The 4% chance for a Democratic victory reflects the statistical possibility of a scandal, death, or other black swan event rather than any realistic electoral competition.
Key Factors Driving the Odds
Oklahoma's 4th district is one of the most reliably Republican seats in the country. The Cook Partisan Voting Index rates it R+19, meaning Republican candidates typically outperform the national average by 19 points. The district covers south-central Oklahoma including Norman, home to the University of Oklahoma, but the surrounding rural areas overwhelmingly vote Republican.
The incumbent, Republican Tom Cole, has held the seat since 2003 and won his 2024 primary with 85% of the vote. He faced no serious general election challenge, winning 66% against a Democratic opponent who raised under $100,000. The district has not elected a Democrat since 1974, when it was a different configuration.
What Could Change These Odds
The only realistic path to a Democratic win would be if Cole resigned or died after the primary but before the general election, forcing a special election in a compressed timeframe. Even then, a Republican replacement would remain heavily favored. The 4% is pure insurance premium against the unknown.
No upcoming events can shift this market. The general election in November 2026 will be a formality. The market's 96% is actually understating Republican chances relative to historical voting patterns. If anything, the true probability is closer to 99.5%, but prediction markets rarely price above 97% due to liquidity constraints and the mechanical cost of maintaining extreme positions.
Cross-Platform Analysis
This market trades exclusively on Kalshi. Polymarket does not list OK-04, likely because the outcome is so predictable that no trader would take the other side. The lack of a second platform means no arbitrage opportunity exists, but also confirms the consensus view that this race is not worth trading.
AI-generated analysis based on market data. Not financial advice.
Overview
Oklahoma's 4th congressional district (OK-04) covers the south-central part of the state, including the cities of Norman, Chickasha, and Duncan, as well as much of the Oklahoma City suburbs and rural areas extending to the Texas border. The district has been represented by Republican Tom Cole since 2003, making him one of the longest-serving current members of the Oklahoma delegation. The 2026 election for the term beginning in 2027 will determine who holds this seat in the 119th Congress. The district has a strong Republican lean, with a Cook Partisan Voting Index of R+19, meaning it votes about 19 percentage points more Republican than the national average. In the 2024 presidential election, Donald Trump carried OK-04 with approximately 68% of the vote. This partisan advantage makes the general election largely a formality, with the real contest occurring in the Republican primary, scheduled for June 2026. Tom Cole, born in 1949, has announced he will not seek reelection in 2026, creating an open seat for the first time in over two decades. Cole's retirement was announced in February 2025, setting off a competitive Republican primary race. Potential candidates include state legislators, local officials, and political newcomers, though no declared candidates had formally filed as of early 2025. The race is being closely watched because it will determine the successor to a powerful appropriator. Cole chaired the House Appropriations Committee from 2023 to 2025 and currently serves as the chair of the Subcommittee on Transportation, Housing and Urban Development. His departure marks a significant loss of seniority for Oklahoma's delegation and will shift the district's representation from a committee chair to a freshman member.
Historical Context
Oklahoma's 4th congressional district was created in 1907 after Oklahoma statehood. The district has been represented by Republicans since 1975, when Tom Steed, a Democrat, left office. Since then, Republicans have held the seat continuously, with Tom Cole winning every election since 2002 by comfortable margins, often exceeding 60% of the vote. The Cook Partisan Voting Index for OK-04 has shifted from R+16 in 2016 to R+19 in 2024, reflecting the district's increasing Republican tilt. In the 2024 presidential election, Donald Trump won the district with 68% of the vote, compared to Joe Biden's 30%. This partisan environment means the Democratic nominee typically receives less than 35% of the vote in general elections. Open seat races in safe Republican districts often attract multiple primary candidates. In 2020, Tom Cole faced four primary challengers but still won with 58% of the vote. The 2026 primary is expected to be contested, with candidates positioning themselves as the most conservative or the most experienced. The last time OK-04 had an open seat was in 2002, when Cole won the Republican primary with 43% of the vote in a six-candidate field.
Why It Matters
The OK-04 race matters because it will determine who fills a powerful House Appropriations Committee seat. Tom Cole's departure means the district loses a member who could direct federal funding to local projects, including military bases like Tinker Air Force Base, which is a major employer in the district. The new member will start as a freshman with no seniority, reducing Oklahoma's influence in budget negotiations. Politically, the race will test the strength of different factions within the Oklahoma Republican Party. The primary will likely feature candidates backed by establishment figures versus those aligned with more conservative or populist movements. The outcome could signal the direction of the state GOP and influence future congressional races. For national observers, the race is a data point in understanding Republican internal dynamics ahead of the 2026 midterm elections.
Current Status
As of early 2025, Tom Cole has announced he will not seek reelection in 2026, but no candidates have formally declared for the Republican primary. Several potential candidates are being discussed, including state legislators Kevin Wallace and Nathan Dahm, as well as former candidate Paul Wesselhoft. The Oklahoma Republican Party has not yet set a primary date, but it is expected to be in June 2026. The Democratic Party has not identified a candidate, and given the district's partisan makeup, the primary winner is almost certain to win the general election. The race is currently in its early stages, with filing deadlines likely in early 2026.
Frequently Asked Questions
Who is running for OK-04 in 2026?
No candidates have formally declared as of early 2025. Potential Republican candidates include state representatives Kevin Wallace and Nathan Dahm, and former candidate Paul Wesselhoft. The Democratic nominee is expected to be a long-shot candidate.
Is OK-04 a safe Republican seat?
Yes, OK-04 is one of the safest Republican seats in the country, with a Cook PVI of R+19. Republicans have held the seat since 1975, and the Democratic candidate typically receives less than 35% of the vote.
Why is Tom Cole retiring?
Tom Cole announced in February 2025 that he would not seek reelection in 2026. He has not given a specific reason, but at age 76, retirement is common. He will have served 24 years by the end of his term.
What is the Cook PVI for OK-04?
The Cook Partisan Voting Index for OK-04 is R+19, meaning the district votes 19 percentage points more Republican than the national average. This makes it the 12th most Republican district in the country.
When is the OK-04 primary in 2026?
The Oklahoma primary for congressional races is typically held in June. The exact date for 2026 has not been set, but it will likely be in late June. A runoff, if needed, would be in August.
How does OK-04 compare to other Oklahoma districts?
OK-04 is the second most Republican district in Oklahoma after OK-03 (R+24). OK-01 is R+14, OK-02 is R+16, and OK-05 is R+12. All five Oklahoma districts are held by Republicans.
Educational content is AI-generated and sourced from Wikipedia. It should not be considered financial advice.
