“Nancy Mace has yet again decided to turn her back on MAGA to hug the political cactus that is the Rand Paul + Thomas Massie wing of the Party. I have notified her and her team that I am resigning because of this,” McCubbin wrote on X. “My name has been used publicly, while going back on her word to pay me, to trade on my Team Trump status and to work on her behalf with the White House, and I am 100% breaking with her campaign out of loyalty to the President.”

He raised concerns over Mace’s ties to Paul’s Protect Freedom PAC and said she fully embraced “the Rand Paul + Thomas Massie wing for money.” The two Kentuckians have publicly sparred with the Trump administration on a number of matters, including the alleged drug boat strikes in the Caribbean and, until Trump signed it, the Epstein Files Transparency Act, which Mace also supported.

“Nancy Mace is wittingly or unwittingly a proxy for Rand Paul’s 2028 presidential campaign,” McCubbin said. “That’s the straw that broke the camel’s back. She wouldn’t hear it when I warned her about the political risks and offered alternative solutions.”

A spokesperson for Mace’s gubernatorial campaign brushed off McCubbin’s post in a statement to the Washington Examiner.

“Mr. McCubbin didn’t raise a dime for the campaign, or better yet, never even bothered showing up,” the spokesperson said. “When he demanded $10,000 a month for ‘services’ and was told no, he ran straight to X. Good luck with that.”

In his X post, McCubbin advised Trump’s team to “scratch her name from the list” when weighing who to support in the long list of GOP candidates running to be the next governor of the Palmetto State.

“Anyone who knows me knows that I have nothing personally against Rand or Nancy. This is about loyalty,” he said. “My loyalty lies with President Trump, my colleagues I worked with in the campaign trenches and the MAGA base that I had the privilege to work with as the Team Trump SC State Director.”

However, Mace’s campaign denied any suggestions of wavering loyalty to Trump.

“Nancy Mace has stood with President Trump since Day ONE. Mr. McCubbin said it himself: ‘Nancy Mace will be the most pro-Trump and America First Governor in the country,’” the spokesperson said.

NANCY MACE FILES LEGISLATION TO STRIKE HEMP BAN TUCKED INTO FUNDING BILL

With five declared Republican candidates in the primary field, Trump has not yet made an endorsement for the next South Carolina governor. The election is set for Nov. 3, 2026.

Other prominent GOP candidates include Rep. Ralph Norman (R-SC), state Attorney General Alan Wilson, and Lt. Gov. Pamela Evette.