Trump-backed Indiana primaries punish Republicans who opposed redistricting push

Indiana Republicans who crossed Donald Trump over redistricting paid a steep price at the ballot box, as Trump-backed challengers won at least five of seven state Senate primaries and turned an ordinarily quiet legislative contest into a show of force.

The fight began after Indiana Senate Republicans rejected Trump’s demand to redraw the state’s congressional map before the 2026 midterms. In December 2025, the chamber voted 31-19 against a plan that would have favored Republicans in all nine of Indiana’s U.S. House seats. Twenty-one GOP senators joined all 10 Democrats in defeating the map, and eight of those Republicans were up for reelection this year.

Trump endorsed challengers against seven of those lawmakers, and the result showed how quickly a state legislative race can become a loyalty test when the former president, his allies and aligned donors decide to enforce discipline. At least $8.3 million flowed into the contests, and AdImpact tracking showed two Banks-aligned groups spent a combined $9 million in the races. Conservative organizations including Club for Growth and Turning Point USA also joined the effort, helping make the primaries unusually expensive and nationalized for down-ballot seats.

The most expensive contest centered on Sen. Spencer Deery. Trump-, Banks- and Braun-aligned super PACs spent more than $2.2 million attacking him, while Deery spent roughly $815,000, far more than the $142,000 he had spent across his 2022 primary and general election combined when he first won the seat. One race remained too close to call after election night, but the overall message from the Republican electorate was already clear.

State Sen. Travis Holdman, one of the defeated incumbents, said after his loss that he had voted against redistricting because his constituents wanted him to and that it cost him his job. “Welcome to D.C. politics in Indiana because this means that’s what’s coming,” he said. His defeat, along with the losses of several other redistricting opponents, underscored how quickly a policy dispute in Indianapolis became a test of allegiance to Trump and to the Republican power structure now surrounding him.

U.S. Sen. Jim Banks praised the results on social media, calling it a “Big night for MAGA in Indiana.” The outcome also strengthens the hand of Gov. Mike Braun and other Trump-aligned power brokers as they look to punish dissent inside the Indiana GOP and beyond. The precedent now reaches far outside Indiana: it signals to Republicans in places like Louisiana and Kentucky that resistance to Trump’s priorities, on redistricting or otherwise, can trigger organized retaliation, donor pressure and primary threats.