https://www.foxnews.com/politics/sen-lindsey-graham-dies-after-brief-sudden-illness-office-says

The unexpected death of Senator Lindsey Graham has set off a scramble among South Carolina Republicans to secure the nomination for his U.S. Senate seat. Graham, who was a four-term senator, passed away on July 11, 2026, due to an aortic rupture. His passing leaves a vacancy that South Carolina Governor Henry McMaster must fill temporarily until a special election is held. The Republican primary for the seat is now wide open, with prominent figures such as Rep. Nancy Mace, Gov. McMaster himself, Rep. Joe Wilson, and Lt. Gov. Pamela Evette showing interest. Former President Donald Trump is expected to influence the selection process, indicating his preference for Graham’s successor.

Markets appear to be reacting to this development with increased uncertainty regarding the Republican hold on the Senate seat. The Cook Political Report previously classified the seat as “Safe Republican,” but Graham’s recent approval ratings had shown signs of weakening. This shift in dynamics may suggest a potential advantage for the Democratic candidate in the upcoming general election, influencing broader market expectations for Senate control.