A recount in a contested May Indiana state Senate primary has put Republican Paula Copenhaver, who was backed by President Donald Trump, ahead of incumbent Spencer Deery.

Deery was one of seven GOP members of the Indiana state Senate who faced primary challengers this spring after voting down a redrawn congressional map that Trump pushed last year. Five lost, while Deery clung to a three-vote lead, which Copenhaver challenged.

On Monday, ten votes — eight for Deery and two for Copenhaver — were thrown out by the Indiana Recount Commission over minor errors, the Indiana Capital Chronicle reported, giving Copenhaver a three-vote edge.

Deery said in a post on X that he would appeal the decision, calling it an “attempt to undermine the will of voters by treating ballots differently based on whether they furthered the president’s political goals.”

In a text message to NBC News, Deery said that commission’s ruling set a bad precedent for future election challenges.

“What was most remarkable about today’s hearing was that voter intent was never in question. None of the ballots challenged were discarded because there was uncertainty about whom the voter intended to support. The disputes instead centered on technicalities resulting from errors by government officials,” he said. “We are confident Indiana’s appellate courts will restore the vote totals that have been counted and recounted and reaffirm the choice voters made in Senate District 23.”

Copenhaver, an aide to Indiana Lt. Gov. Micah Beckwith, did not immediately respond to a request for comment.

If her victory survives appeal, Copenhaver would be favored in the general election in the heavily Republican 23rd state Senate district. West Lafayette City Councilman David Sanders, a Democrat, and independent candidate Joshua Brant are also running.

The new state Senate could reconsider redistricting ahead of the 2028 election. Indiana Senate President Rod Bray, who also opposed the Trump-backed map, said last month he would not seek another term as Republican leader.

Trump celebrated his announcement in a Truth Social post.

“I want to thank the Great State of Indiana for your support, not only in my Presidential Election, which we won with the Highest Vote in the History of the State, but also for your support in getting rid of wayward Senators, led down the Path of Destruction by a FOOL named Rodric Bray,” he wrote.