Trump's Endorsement Power Put to the Test in South Carolina Primary

The upcoming Republican primary in South Carolina on August 11, 2026, is a crucial test of Donald Trump's endorsement power. The special primary follows the death of Senator Lindsey Graham, who secured the GOP nomination in June. Governor Henry McMaster appointed Darline Graham Nordone as a temporary replacement until early 2027.

Ralph Norman and Nancy Mace are among the contenders for the Republican nomination, with market pricing suggesting that Trump's endorsement could significantly impact Norman's chances. The current market reflects a 21% YES probability for Norman's nomination, up from 8% a week ago.

The special primary is set for August 11, and candidate filings have now closed, making endorsements and campaign messages critical in the coming days. Observers will be watching closely to see if Trump publicly endorses any candidate, which could indicate increased support for that candidate's chances.