President Donald Trump endorsed a Republican congressmember to replace Sen. Mitch McConnell while rejecting a self-styled MAGA candidate with backing from Elon Musk.

Trump announced his support Friday for Rep. Andy Barr in the Kentucky Republican primary, shortly after he said he asked businessperson Nate Morris to drop out of the race and take an unspecified role in the Trump administration.

The endorsement gives Barr a massive boost to win the GOP nomination over former Kentucky Attorney General Daniel Cameron in the deep-red state.

“I know Andy well, and he is always a Vote we can count on because he knows what it takes to GET THINGS DONE and, MAKE AMERICA GREAT AGAIN!” Trump said on social media.

Trump said he asked Morris to serve as an ambassador but did not specify the exact diplomatic post, while praising him as a “strong MAGA Warrior.”

“Nate is Oxford educated, tough as nails, LOVES our Great Nation, and will represent the United States very well, overseas, or otherwise,” Trump said.

Morris endorsed Barr in a social media post, and called on “all Kentuckians to rally behind our next Senator.”

Morris has self-financed his campaign to stay financially competitive with Barr. But he did receive a significant investment from Elon Musk, who dropped $10 million into his campaign, according to federal campaign finance records from earlier this year.

The primary had been defined by Barr, Cameron and Morris seeking to distance themselves from McConnell, the lion of the Kentucky GOP who has grown into a Trump adversary and condemned the president for the Jan. 6, 2021, attack on the Capitol.

That maneuvering away from McConnell speaks to the power of Trump’s endorsement in the state, Kentucky Republican strategist Tres Watson said. He noted that Cameron will be familiar with the gift Trump has given Barr — Cameron won the GOP primary for governor in 2023 after getting Trump’s backing.

“It’s all over but the shouting,” Watson said. “Donald Trump’s endorsement effectively ends this campaign and Andy Barr can begin to turn his attention to the general election.”

Barr’s allies celebrated Trump’s endorsement. Former Kentucky Senate Majority Leader Damon Thayer said it shows that Barr has run a “perfect race” thus far.

“I’m pleased that President Trump has endorsed Andy Barr,” Thayer said. “He likes to support winners and it’s been clear right from the start that Andy has what it takes to win the primary and the general and hold the seat for Republicans.”

Daniel Desrochers contributed to this report.