New Delhi, May 5 -- US President Donald Trump is backing primary challengers against seven Republican state senators in Indiana who opposed his congressional redistricting push aimed at helping Republicans gain more seats in the U.S. House.

The targeted lawmakers represent strongly Republican districts that Trump won comfortably in 2024. The races are being closely watched as a measure of Trump's continued influence over the Republican Party ahead of the 2026 midterm elections.

Trump-aligned groups have poured millions of dollars into advertising campaigns, turning normally low-profile state legislative races into nationally watched contests.

The key Indiana Senate districts include 1, 11, 19, 21, 23, 38 and 41.

The results could send...