Republican presidential candidate and former Rep. Mark Sanford Mark SanfordOn The Money: Business world braces for blue sweep | Federal Reserve chief to outline plans for inflation, economy | Meadows 'not optimistic' about stalemate on coronavirus deal Trump critic Sanford forms anti-debt advocacy group Republicans officially renominate Trump for president MORE (S.C.) held a mock debate with a cardboard cutout of President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

Sanford could be seen “debating” next to the cutout of Trump at three different stops around South Carolina Monday as he called on the state Republican Party to change course and hold a presidential primary next year, according to The Post and Courier.

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“I don’t want to make this my only debate between myself and the president of the United States,” Sanford said as he gestured to the full-size cutout of Trump standing next to him.

Sanford’s stunt came after the South Carolina Republican Party’s executive committee decided this month not to have a GOP presidential primary, saying it would save an estimated $1.2 million — the amount the State Election Commission says holding the primary would cost taxpayers.

South Carolina is one of four states that have had their respective GOPs cancel presidential primaries.

Sanford said during one stop Monday that the state's cancellation of the primary led him to question the strength of Trump’s support, according to The Post and Courier.

“Why in the world would the Trump administration not be insisting, and the Trump campaign not be insisting, that the primary take place? Because in the world of politics, if you have a chance to lock in a 90 percent win, particularly if you’re in the 'first in the south' primary, you do it,” Sanford said, adding this might suggest Trump’s support could be “a mile wide and perhaps an inch deep.”

Sanford also said his team is currently looking at every option to push for a primary, noting that a legal fight would be the last possibility.

Trump indicated earlier this month that he would not be open to debating any of his three Republican challengers, calling it a “publicity stunt.”

“To be honest, I’m not looking to give them any credibility,” Trump said.

Former Rep. Joe Walsh Joe WalshSunday shows preview: Protests continue over shooting of Blake; coronavirus legislation talks remain at impasse Republicans officially renominate Trump for president Tucker Carlson responds to guest correcting pronunciation of Kamala Harris's name: 'So what?' MORE (Ill.) and former Massachusetts Gov. Bill Weld William (Bill) WeldRalph Gants, chief justice of Massachusetts supreme court, dies at 65 The Hill's Campaign Report: Biden visits Kenosha | Trump's double-voting suggestion draws fire | Facebook clamps down on election ads Biden picks up endorsements from nearly 100 Republicans MORE along with Sanford are all running campaigns against Trump.