Twenty-one Indiana Republican state senators joined Democrats this week in voting down a redistricting bill backed by President Donald Trump, leading the White House and political allies to indicate they intend to back primary efforts targeting those lawmakers.

On December 11, 2025, the Indiana State Senate voted 31-19 against a congressional redistricting bill backed by President Trump and the White House, delivering a significant blow to GOP efforts to reinforce their narrow U.S. House majority. Notably, 21 Republican senators broke ranks to oppose the measure, defying a months-long push from Trump, Vice President JD Vance, House Speaker Mike Johnson, and a network of conservative advocacy organizations.

The bill, passed days earlier by the Indiana House of Representatives, was d

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