# IN-04 House winner? IN-04 Updated: May 8, 2026 Category: Elections Tags: House US Elections HTML: /markets/elections/house/in-04-house-winner/ ## Short Answer **Key takeaway.** Both the **model** and the **market** overwhelmingly agree that the Republican party is most likely to win the IN-04 House race, with only minor residual uncertainty. ## Key Claims (January 2026) **- - IN-04 historically exhibits strong Republican dominance, with an R+15 Cook PVI.** - Incumbent Jim Baird won the 2024 election with a commanding **64.9%**. - National Democratic advantage may narrow the Republican lead in IN-04. - Jim Baird's campaign committee was fined in March 2025 for loan issues. - Early campaign filings reveal active fundraising and spending in IN-04. ### Why This Matters (GEO) - AI agents extract claims, not arguments. - Improves citation probability in summaries and answer cards. - Enables fact stitching across multiple sources. ## Executive Verdict **Key takeaway.** **Market** prices Republican winner at **92.4%** versus **model**'s **92%**, reflecting dominance despite Democratic challenges. ### Who Wins and Why | Outcome | Market | Model | Why | | --- | --- | --- | --- | | Republican party | 92.7% | 94.4% | The Republican party holds a significant advantage in the IN-04 House contest. | | Democratic party | 7.6% | 5.6% | The Democratic party faces considerable challenges in the IN-04 House contest. | ## Model vs Market | Outcome | Market Probability | Octagon Model Probability | | --- | --- | --- | | Republican party | 92.7% | 94.4% | | Democratic party | 7.6% | 5.6% | - Expiration: November 3, 2027 ## Market Behavior & Price Dynamics This market has demonstrated low volatility, trading within a very narrow price band between 5.0% and 8.0%. The overall price action has been largely sideways, characterized by one significant upward movement. The price established a floor at 5.0% before moving up to its current level of 7.6%, where it appears to have stabilized. This 7.6% level is near the top of the market's historical range, suggesting it may be a point of resistance. The single price spike from 5.0% to 7.6% likely reflects the market's reaction to news clarifying the general election matchup. Context indicates that Drew Cox won the Democratic nomination to challenge the incumbent, Jim Baird. This development appears to have prompted traders to slightly increase their probability assessment for a Democratic win, moving the price off its initial floor. However, the total traded volume of 488 contracts is low, suggesting limited participation and conviction among traders. Overall, the market sentiment remains heavily pessimistic about the 'YES' contract's chances, with the current price implying that the Republican incumbent is seen as the overwhelming favorite to win the election. ## Contract Snapshot This market resolves to "Yes" if the House member sworn in for Indiana's 4th congressional district (IN-04) for the term beginning in 2027 is a member of the Republican Party; otherwise, it resolves to "No." The market opened on January 6, 2026, closes on November 3, 2027, with a projected payout shortly thereafter. Settlement can be accelerated if a consensus of media organizations projects the winner, and the outcome is ultimately verified by the Library of Congress. ## Market Discussion The Associated Press called the Indiana 4th Congressional District race on the evening of November 5, 2024, confirming Republican incumbent Jim Baird as the winner of re-election [[^]](https://www.wfyi.org/public-affairs/2024-11-05/republican-incumbent-jim-baird-wins-re-election-in-indianas-4th-congressional-district). This outcome is consistent with analyses suggesting U.S. House races are highly predictable due to strong partisanship, with models in November 2024 indicating Republicans had a 52% chance of winning control of the House [[^]](https://fairvote.org/u-s-house-results-can-be-predicted-with-98-accuracy-two-years-in-advance/). ## Market Data | Contract | Yes Bid | Yes Ask | Last Price | Volume | Open Interest | | --- | --- | --- | --- | --- | --- | | Democratic party | 7.5% | 7.6% | 7.6% | $996 | $975 | | Republican party | 92.6% | 92.7% | 92.7% | $1,763 | $1,335.5 | ## What evidence from the 2024 election cycle supports the Republican party's expected dominance in Indiana's 4th District for the 2026 midterms? 2026 IN-04 Republican Win Probability | 91-92% (Prediction Markets) [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner) | 2024 IN-04 Republican Vote Share | 64.9% (Jim Baird) [[^]](https://www.thegardnernews.com/elections/results/2024-11-05/race/15023/indiana)[[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2024) | Cook PVI IN-04 | R+15 [[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District) | **The Republican Party is expected to maintain its dominance in Indiana's 4th District for the 2026 midterms** The Republican Party is expected to maintain its dominance in Indiana's 4th District for the 2026 midterms. This projection is strongly supported by evidence from the 2024 election cycle and historical performance. Current prediction markets indicate a 91-**92%** **probability** of a Republican win in the 2026 IN-04 election [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner). Recent election results and district demographics confirm Republican strength within the district. In the 2024 general election, Republican Jim Baird secured Indiana's 4th Congressional District with **64.9%** of the vote, totaling 210,000 votes, significantly outperforming the Democratic candidate's **30.9%** (100,000 votes) [[^]](https://www.thegardnernews.com/elections/results/2024-11-05/race/15023/indiana)[[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2024). The district holds a Cook PVI of R+15, based on 2020 and 2024 presidential results, making it the 73rd most Republican district nationally [[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District). The Republican Party has consistently achieved large margins, including a **68.2%** to **31.8%** victory in 2022 [[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2024). Robust statewide Republican performance further bolsters district projections. In 2024, Donald Trump won Indiana by a 19-point margin, securing **58.6%** of the vote compared to **39.7%** for his opponent [[^]](https://www.indystar.com/elections/results/2024-11-05/race/0/indiana). These collective factors, including consistent district-level victories and strong statewide Republican support, contribute to the expectation of continued Republican dominance in IN-04 for the 2026 midterms. ## How might national trends reflected in the 2026 generic congressional ballot influence the final vote margin in the IN-04 race? National Generic Ballot | D+5 to D+5.9 (FiftyPlusOne: D+5; Silver Bulletin: D+5.9) on 2026-05-07 [[^]](https://fiftyplusone.news/polls/generic-ballot/generic-ballot)[[^]](https://www.natesilver.net/p/generic-ballot-average-2026-nate-silver-bulletin-congress-polls)[[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2026)[[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner) | IN-04 Republican Win Probability | 91–92% [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner) | IN-04 Cook PVI | R+15 [[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2026) | **National Democratic advantage expected to narrow Republican lead in IN-04** National Democratic advantage expected to narrow Republican lead in IN-04. As of May 7, 2026, the national generic congressional ballot registered a Democratic lead of D+5 to D+5.9, with FiftyPlusOne reporting D+5 and Silver Bulletin indicating D+5.9 [[^]](https://fiftyplusone.news/polls/generic-ballot/generic-ballot)[[^]](https://www.natesilver.net/p/generic-ballot-average-2026-nate-silver-bulletin-congress-polls)[[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2026)[[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner). This national trend is most likely to affect the IN-04 race by shrinking the Republican Party's lead. IN-04's strong Republican leaning ensures the ultimate outcome remains unchanged. Indiana's 4th Congressional District is considered a strong Republican stronghold, categorized as a Cook PVI R+15 seat [[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2026). Consequently, despite the national generic congressional ballot showing a Democratic advantage, this trend is not expected to change the ultimate winner of the IN-04 race. Prediction markets for IN-04 price a Republican general-election win at approximately 91–**92%**, while a Democratic win stands at about **9%** [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner). Therefore, the national trend is projected to reduce the Republican Party's margin of victory in IN-04 rather than altering the election's outcome [[^]](https://fiftyplusone.news/polls/generic-ballot/generic-ballot)[[^]](https://www.natesilver.net/p/generic-ballot-average-2026-nate-silver-bulletin-congress-polls)[[^]](https://ballotpedia.org/Indiana%27s_4th_Congressional_District_election,_2026)[[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner)[[^]](https://base.polymarket.com/event/in-04-house-election-winner). ## How do incumbent Jim Baird's and the prospective 2026 Democratic nominee's policy platforms compare on key economic issues like inflation and affordability? Baird's Identified Inflation Cause | Out-of-control spending (Jim Baird) [[^]](https://baird.house.gov/news/documentsingle.aspx?DocumentID=1453) | Baird's Proposed Solutions | Rein in spending, expand tax relief, rescind regulations (Jim Baird) [[^]](https://baird.house.gov/news/documentsingle.aspx?DocumentID=1453) | Democratic Focus | Affordability and cost-of-living (Prospective 2026 Democratic nominees) [[^]](https://youarecurrent.com/2026/04/13/crowded-field-for-4th-congressional-district-democratic-primary/) | **Incumbent Jim Baird's platform targets inflation through spending and deregulation** Incumbent Jim Baird's platform targets inflation through spending and deregulation. Congressman Jim Baird attributes current inflation to "out-of-control spending" and advocates a multi-pronged approach to address it. His proposed solutions include reining in government spending, expanding "tax relief for Hoosier families," and rescinding "burdensome, costly regulations." This strategy was articulated in a statement regarding the FY2025 budget resolution on February 25, 2025 [[^]](https://baird.house.gov/news/documentsingle.aspx?DocumentID=1453). Prospective Democratic nominees prioritize affordability and reducing living costs for citizens. In contrast to the incumbent, potential 2026 Democratic candidates emphasize affordability and the high cost of living, pointing to specific issues such as "Unaffordable health care" and the "Ever increasing cost of energy." Their proposed solutions to "reduce living costs" include stopping tariffs, dismantling monopolies and corporate buying effects, and tackling the primary drivers of utility and energy expenses [[^]](https://youarecurrent.com/2026/04/13/crowded-field-for-4th-congressional-district-democratic-primary/). For instance, Democratic candidate Paul McPherson's campaign site features a section titled "Wages and Cost of Living," which underscores the importance of ensuring that "hard work actually pays the bills" [[^]](https://votemcpherson.com/). ## What do the 2025-2026 FEC filings reveal about the fundraising and spending priorities of the Republican and Democratic campaigns in IN-04? Houchin Campaign Receipts | $858,472.76 (01/01/2025–09/30/2025) [[^]](https://www.fec.gov/data/committee/C00800649/) | Houchin Campaign Disbursements | $537,503.28 (01/01/2025–09/30/2025) [[^]](https://www.fec.gov/data/committee/C00800649/) | Mrvan Funds Raised | $1,419,469 (as of Dec. 31, 2025) [[^]](https://www.ipm.org/news/2026-02-04/fundraising-picks-up-for-indiana-congressional-races) | **Early FEC filings show active fundraising and spending in IN-04 campaigns** Early FEC filings show active fundraising and spending in IN-04 campaigns. The 2025–2026 FEC filings reveal significant early-cycle fundraising and spending by both Republican and Democratic campaigns in Indiana's 4th congressional district, suggesting active campaign operations [[^]](https://www.fec.gov/data/committee/C00800649/)[[^]](https://www.fec.gov/data/candidate/H0IN01150/?tab=other-spending). However, the available data does not permit a complete, direct comparison of total receipts and disbursements for all major committees across the same reporting periods, nor does it itemize specific spending priorities beyond general financial figures [[^]](https://www.fec.gov/data/committee/C00800649/)[[^]](https://www.fec.gov/data/candidate/H0IN01150/?tab=other-spending). Republican Houchin for Congress reported strong early financial activity. The Republican campaign, HOUCHIN FOR CONGRESS, demonstrated substantial financial engagement early in the cycle. This committee reported total receipts amounting to **$858,472.76** and total disbursements of **$537,503.28** for the period spanning January 1, 2025, to September 30, 2025 [[^]](https://www.fec.gov/data/committee/C00800649/). Democratic campaigns also displayed significant early financial disbursements and fundraising. On the Democratic side, MRVAN FOR CONGRESS reported total disbursements of **$832,731.87** over a period from January 1, 2025, to March 31, 2026 [[^]](https://www.fec.gov/data/candidate/H0IN01150/?tab=other-spending). Furthermore, reports on Indiana congressional fundraising indicate that Representative Frank Mrvan raised **$1,419,469** and held **$908,285** in cash on hand as of December 31, 2025, within the context of the IN-04 race [[^]](https://www.ipm.org/news/2026-02-04/fundraising-picks-up-for-indiana-congressional-races). ## Which specific legislative votes or potential scandals involving Jim Baird could alienate moderate Republican voters before the November 2026 election? FEC Fine Amount | $160,500 (March 2025) [[^]](https://www.wfyi.org/public-affairs/2025-03-17/indiana-rep-baird-fined-for-failing-to-disclose-campaign-loan-repayment) | Staff Turnover Rank (2023) | Highest among House Republicans, 2nd highest overall [[^]](https://en.wikipedia.org/wiki/Jim_Baird_(politician)) | Equality Act Vote | No (February 2021) [[^]](https://baird.house.gov/news/documentsingle.aspx?DocumentID=139) | **Jim Baird faces scrutiny over financial disclosures and office management** Jim Baird faces scrutiny over financial disclosures and office management. His campaign committee was fined by the Federal Election Commission in March 2025 for failing to disclose a **$160,500** repayment of a personal loan, marking the second such penalty for disclosure issues. This pattern of non-disclosure could concern moderate Republican voters ahead of the November 2026 election [[^]](https://www.wfyi.org/public-affairs/2025-03-17/indiana-rep-baird-fined-for-failing-to-disclose-campaign-loan-repayment). Additionally, in 2023, Baird's office had the highest staff turnover among Republican Members of Congress and the second highest overall in the House, at a rate three times the House average, which could reflect negatively on his leadership or office management [[^]](https://en.wikipedia.org/wiki/Jim_Baird_(politician)). Several legislative votes may alienate moderate Republican voters. Baird cast a "No" vote on the Equality Act in February 2021, citing concerns about religious freedom and other issues [[^]](https://baird.house.gov/news/documentsingle.aspx?DocumentID=139). Similarly, he voted "No" on the Respect for Marriage Act in December 2022, based on arguments regarding religious and moral beliefs about traditional marriage [[^]](https://heritageaction.com/scorecard/members/B001307/117). These stances could be viewed as out of step by more moderate elements of the Republican electorate. Baird's immigration stance reveals a nuanced position. While generally conservative on immigration, his support for the Farm Workforce Modernization Act in 2021, which offered a pathway to legal status for some undocumented agricultural workers, and his co-sponsorship of the DIGNIDAD Act in 2026, proposing a pathway to legal status for up to 12 million undocumented immigrants balanced with stricter border enforcement, present a complex approach [[^]](https://en.wikipedia.org/wiki/Jim_Baird_(politician)). This dual approach could be viewed differently by various segments of the Republican electorate, potentially alienating voters on either side of the immigration debate. ## What Could Change the Odds **The IN-04 "House Election Winner" market currently prices the Republican Party at ~92% and the Democratic Party at ~9%, implying a very strong Republican general-election expectation.** This **market** is set to resolve around Nov 3, 2026 [[^]](https://base.polymarket.com/event/in-04-house-election-winner). In the IN-04 Republican primary **market**, incumbent Jim Baird is the leading outcome at ~**89%** versus Craig Haggard at ~**9%**, indicating that traders already price Baird as the likely nominee prior to the general election [[^]](https://polymarket.com/event/in-04-republican-primary-winner). **A specific catalyst that could lead to IN-04 odds compression toward Democrats is a contentious or negative Republican primary outcome [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner).** For example, if the Republican nominee emerges with high negatives after the May 5 primary, this risk could shift the ~91–**92%** Republican price upward for Democrats [[^]](https://www.lines.com/prediction-markets/elections/in-04-house-election-winner). Indiana's official election schedule lists the next general election date as Tuesday, Nov 3, 2026, and the next primary as Tuesday, May 5, 2026, aligning with the IN-04 prediction **market**’s Nov 3 resolution timing [[^]](https://www.in.gov/sos/elections/). ## Key Dates & Catalysts - **Expiration:** November 03, 2027 - **Closes:** November 03, 2027 ## Decision-Flipping Events - The IN-04 "House Election Winner" **market** currently prices the Republican Party at ~**92%** and the Democratic Party at ~**9%**, implying a very strong Republican general-election expectation. - This **market** is set to resolve around Nov 3, 2026 [^] . - In the IN-04 Republican primary **market**, incumbent Jim Baird is the leading outcome at ~**89%** versus Craig Haggard at ~**9%**, indicating that traders already price Baird as the likely nominee prior to the general election [^] . - A specific catalyst that could lead to IN-04 odds compression toward Democrats is a contentious or negative Republican primary outcome [^] . ## Related Research Reports - [EU loses a member before 2030?](/markets/elections/international/eu-loses-a-member-before-2030/) - [Who will run for the Democratic presidential nomination in 2028?](/markets/elections/2028/who-will-run-for-the-democratic-presidential-nomination-in-2028/) - [Who will run for the 2028 Republican presidential nomination?](/markets/elections/2028/who-will-run-for-the-2028-republican-presidential-nomination/) - [Georgia Democratic Attorney General nominee?](/markets/elections/primaries/georgia-democratic-attorney-general-nominee/) ## Historical Resolutions No historical resolution data available for this series. ## Disclaimer This content is for informational and educational purposes only and does not constitute financial, investment, legal, or trading advice. Prediction markets involve risk of loss. Past performance does not guarantee future results. We are not affiliated with Kalshi or any prediction market platform. Market data may be delayed or incomplete. ### Data Sources & Model Transparency **Data Sources:** Octagon Deep Research aggregates information from multiple sources including news, filings, and market data. **Freshness:** Analysis is generated periodically and may not reflect the latest developments. Verify critical information from primary sources. ## Attribution Policy When quoting, summarizing, or reproducing Octagon AI content, attribute it to Octagon AI and link to the Octagon source URL: https://octagonai.co/markets/elections/house/in-04-house-winner If a specific page was used, cite that page rather than only the site homepage.