IN-04 House 2026

Indiana's 4th Congressional District consistently favors Republican candidates, having elected Republican representatives since 1995 ^[1]. This strong conservative alignment was evident in the 2024 general election when incumbent Jim Baird secured 64.9% of the vote, defeating Democratic challenger Derrick Holder (30.9%) and Libertarian Ashley Groff (4%) ^[1]. The district's robust Republican lean is further highlighted by its Cook Partisan Voting Index (PVI) of R+15, ranking it as the 73rd most Republican district nationally based on 2020 and 2024 presidential results ^[2]. This trend is consistent with previous electoral successes, including Baird's 2020 victory against Democrat Joe Mackey ^[3][4], and aligns with the 2024 presidential election where Donald Trump won statewide in Indiana with 58.8% of the popular vote ^[5].

Demographically, the district is predominantly White and economically stable. The population ranges from approximately 772,003 to 789,018 residents ^[5][2], with a significant majority, 81.4%, identifying as White (Non-Hispanic) ^[2]. Other notable groups include Hispanic (7.1%), Black (3.8%), and Asian (3.1%) ^[2]. The district exhibits a largely urban character, with 68.17% of its population living in urban areas compared to 31.83% in rural settings ^[2]. Economic indicators show a median household income between $78,399 and $78,449 ^[5][2], and a poverty rate of 10.6%, which is below the national average ^[5]. Educational attainment is high, with approximately 90% of residents completing high school, matching state and national averages ^[6].

Incumbent Jim Baird shows strong fundraising and cash-on-hand performance. According to the latest 2024 FEC reports, Baird's campaign committee, “Elect Jim Baird For Congress,” reported total receipts of $615,163. The committee maintained $214,610 in cash on hand as of December 31, 2024 ^[1].

Challenger Drew Cox reported significantly lower fundraising totals and cash. In comparison, Cox's campaign showed considerably lower financial figures. His FEC candidate page indicates total receipts of $6,682.65 and an ending cash on hand of $1,709.46 for the stated coverage period ^[2]. These figures highlight a major cash-on-hand disparity favoring incumbent Jim Baird ^[2].

Drew Cox can outperform expectations with local engagement and economic messaging. Democratic candidate Drew Cox could potentially exceed typical party performance in Indiana's 4th Congressional District by focusing on hyper-local engagement, specific economic issues, and nuanced messaging. Cox's grassroots approach aims to build trust with constituents, contrasting with incumbent Jim Baird, who has faced criticism for not holding public town halls ^[3][2]. His platform, centered on "people over profits" and "a new slate of grassroots candidates," may resonate with voters concerned about corporate influence ^[1]. Cox has also addressed the need for "regulation of data centers and other types of industries that take more than they give to the communities they're in," an issue where common ground with Baird could exist ^[1][5].

Cox's professional background allows broad appeal on key issues. As an educator, he is positioned to appeal broadly by advocating for public schools and fair teacher salaries, particularly relevant in a district home to Purdue University and various K-12 systems ^[6][5]. As a veteran, he speaks with authority on issues affecting service members, prioritizing fully funded mental health services, eliminating veteran homelessness, and ensuring high-quality care, aligning with a respected demographic and partially overlapping with Baird's concerns ^[1][7][8]. In this Republican-leaning district, Cox could strategically frame his "strong believer" stance on bodily autonomy around individual freedom and limited government interference ^[9][7]. Similarly, his call for Immigration and Customs Enforcement (ICE) oversight could emphasize accountability and consistent law enforcement standards ^[1].

Robust grassroots mobilization is essential for Cox's campaign success. Given the district's strong Republican lean, robust grassroots mobilization and voter engagement are crucial for Cox's campaign ^[4]. This strategy involves early, high-quality organizing, dividing the district into territories, training volunteers, and extensive door-knocking to collect signatures and gather voter information on pertinent issues ^[2][10]. Additionally, establishing clear distinctions regarding how Baird's voting record or policy positions, such as federal program cuts, might negatively impact IN-04 residents could be an effective tactic ^[3].

The Indiana Secretary of State is the definitive source for voter data. The Indiana Secretary of State (IN.gov) serves as the primary and most reliable source for county-level voter registration and historical turnout data relevant to Indiana's 4th Congressional District. For the 2024 General Election, official reports such as the "Turnout and Registration" PDF, published by the Indiana Secretary of State, will provide key data on registered voters and turnout ^[1]. Historical data, including county-level registration and turnout for past elections like 2020, is centrally archived on the Indiana Secretary of State's "Voter Registration and Turnout Statistics" page, offering downloadable PDFs ^[2][4].

Applying this data to IN-04 requires careful county mapping. Applying this county-level data specifically to Indiana's 4th Congressional District (IN-04) necessitates a district-to-county mapping procedure, as the district often includes both full and portions of counties ^[3]. District composition details from sources like Ballotpedia should be referenced to accurately delineate the counties or parts thereof within IN-04 ^[3][5]. While alternative resources such as the University of Florida Election Lab offer precinct-level historical data, the official registration and turnout statistics are provided exclusively by IN.gov ^[6][7].

Incumbent Jim Baird faces several campaign vulnerabilities, including concerns about his age. At 80 years old, questions regarding his vigor could become a campaign issue ^[1][2]. Since beginning his service in 2019, Baird has maintained a strong conservative voting record, notably objecting to the certification of electoral college votes on January 6, 2021, which led some companies to discontinue contributions ^[4]. He also voted against the Equality Act, citing religious liberty concerns, and opposed H.R. 1, terming it an "Election Power Grab" ^[5][6]. This consistent conservative stance is further highlighted by an 11% lifetime score from the AFL-CIO, indicating opposition to positions generally favored by "working people" ^[3]. Additionally, he has historically contended with weak fundraising, sometimes relying heavily on personal loans ^[7].

The national political climate also presents significant challenges for Republican incumbents. The 2026 midterm elections are widely anticipated to create headwinds for Republicans, who currently hold the presidency ^{[8][9][10][11]}. President Donald Trump's fluctuating approval ratings and public dissatisfaction regarding economic and foreign policy issues could negatively impact Republican incumbents, even in strongly conservative districts ^[8][9][11]. Democrats, conversely, are reportedly more optimistic and have been outraising Republicans in key national contests ^[9][11]. Baird's staunch conservative voting record, including support for partisan legislation such as the Safeguard American Voter Eligibility (SAVE) Act and the Equal Representation Act, could be characterized by Democrats as an unwillingness to compromise. This could potentially alienate moderate voters in specific parts of his district, such as the Lafayette area and western Indianapolis suburbs ^[12][13]. Currently, eight Democrats are competing for their party's nomination for the 2026 election ^[1].

As of the latest available Polymarket snapshot for “IN-04 House Election Winner,” the market assigns approximately 92% to the “Republican Party” versus approximately 9% to the “Democratic Party,” implying a very high probability of a Republican House winner in IN-04 ^[1][2]. This Polymarket market is scheduled to resolve on or around November 3, 2026, which aligns with Ballotpedia’s listing of the IN-04 general election date as November 3, 2026 ^[1][3].

A key local primary catalyst is relevant to the general-election winner odds. Ballotpedia lists the primary for Indiana’s 4th Congressional District House election as May 5, 2026, with the filing deadline February 6, 2026 ^[3]. The Republican primary includes incumbent Jim Baird and challengers Craig Haggard and John Piper ^[3][4][5]. Once the nominee is known, following the primary held on May 5, 2026, the market’s remaining uncertainty is expected to narrow ^[6][3].