Failed congressional redistricting In late 2025, as a part of the broader
2025–2026 United States redistricting, Republican President
Donald Trump urged the state of Indiana
to redraw its congressional districts to oust two incumbent Democratic congressmen from the state. The proposal ran into unexpectedly-strong opposition in the Republican-
supermajority Senate, with over a dozen Republican senators voicing opposition to the move ahead of the vote. In an attempt to pressure holdouts to vote in favor of redrawing the map, Trump vowed to back primary challengers to all Republicans who vote against it. Independent of these actions, a number of senators were targets of threats of violence against them ahead of the vote, including
bomb threats and
swatting calls. Ultimately, the Senate on December 11, 2025, voted 31–19 against redrawing the congressional maps, with 21 Republicans joining all 10 Democrats in opposition.
Campaign Following the vote, Republican
Governor Mike Braun vowed to assist Trump in primarying the Republican senators who voted against redistricting. The
conservative organization
Turning Point Action additionally promised to donate large amounts of money to further that goal. Senator
Greg Walker, who was adamantly against redistricting, reversed his decision to retire and announced in January 2026 that he would run for reelection.
President Donald Trump endorsed all incumbent Republican senators who voted for redistricting and endorsed eight primary challengers, one for nearly every Republican senator running who voted against it.
Results As of May 6th, five of the seven challengers whom Trump endorsed defeated incumbent state senators with one other currently being too close to call. A sixth incumbent who voted against redistricting whose challenger was not endorsed by Trump also lost renomination. ==Overview==