Trump Defends, Praises Lindsey Graham As 2026 Primary Challenge Intensifies

President Donald Trump announced his endorsement of Republican South Carolina Sen. Lindsey Graham on Friday, urging Republican voters to back him as he faces a primary challenge.

Trump posted the endorsement on his social media account, praising Graham’s performance while criticizing his opponent, Mark Lynch. Trump described Lynch as “a disaster for the Republican Party” and accused him of aligning with figures like Republican Kentucky Rep. Thomas Massie.

“Senator Lindsey Graham is doing a fantastic job. He is running against a LUNATIC named Mark Lynch, who supports perhaps the Worst Congressman in the History of our Country, Thomas Massie, of the Great Commonwealth of Kentucky,” Trump wrote. “I don’t have to go into great detail, but needless to say, Mark Lynch would be a DISASTER for the Republican Party, and Lindsey Graham just, GETS THE JOB DONE. VOTE FOR LINDSEY ALL THE WAY.”

Graham took an active, behind-the-scenes role pushing the U.S. toward military action against Iran by working closely with foreign officials and intelligence sources. He traveled repeatedly to Israel, where he met with members of the country’s intelligence agency and gathered information that he later brought back to Washington.