A majority of Indiana Republican state senators lost primary contests on Tuesday after opponents endorsed by U.S. President Donald Trump prevailed, underscoring his sustained leverage within the party five months after lawmakers rejected his redistricting plan. At least five of seven Trump-backed challengers won outright, one incumbent held and one race remained too close to call.

State election officials reported Trump-aligned candidates unseating incumbents in key districts across Indiana, flipping control of multiple Senate primary contests. The outcomes mark a reversal from March, when Republican legislators blocked the President’s redistricting proposal, and signal tightened party discipline ahead of November.

President Trump claimed vindication for his endorsements, stating that voters affirmed his agenda and leadership. Challengers campaigned on loyalty to Trump’s policy platform, while defeated incumbents defended their records on fiscal and social issues.

County canvassing boards are set to certify primary results by May 13, paving the way for general election matchups in November. The Indiana Republican Party will align its campaign resources behind the Trump-endorsed nominees as they prepare to contest Democratic-held seats.