Indiana's Republican-controlled Senate rejected a redistricting plan supported by Donald Trump, which aimed to secure two additional U.S. House seats for the party.The decision followed Trump's public criticism of state senator Rodric Bray and other GOP senators, who cited insufficient support for the mid-decade effort.This act of defiance by 21 Republican senators has led to threats of primary challenges in 2026 and 2028 from Trump and allies, signaling significant internal party strife.