Senator Darline Graham, who was appointed in July to fill the Senate seat left vacant by her late brother Lindsey Graham, has advanced to a Republican primary runoff in South Carolina. This development was projected by NBC News on August 12, 2026.

In related political news, NBC Politics also reported on several key events including Secret Service operations involving former President Trump amid an Iran threat, Trump’s signing of an executive order on the childhood vaccine schedule, and critical midterm primaries in Wisconsin and Minnesota. Additionally, an ex-Marine was freed from Russian prison following discussions between Trump and Putin.

NBC News political analyst Steve Kornacki provided detailed vote breakdowns and previews of other races, including the competitive Wisconsin gubernatorial contest between Francesca Hong and David Crowley.

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