The Associated Press called the race at 9:01 p.m. on Tuesday, with Graham earning 52.3% of the vote over Norman’s 47.7%.

Leveraged by endorsements from President Donald Trump and the legacy left behind by her late brother, Lindsay Graham, Darline will face off against Democrat Annie Andrews for the state’s Senate seat in the November general election.

Graham ran into issues late in her campaign, drawing attention for her political inexperience after a debate held a week before the Special Runoff Election.

She struggled to answer foreign policy questions, as her brother was regarded as an expert on the subject, and she hesitated before admitting, “National security is not my thing.”

Trump defended Graham’s lack of experience, calling her “very honest,” and in sync with what the public needs, saying to reporters before attending a South Carolina rally in support of Darline, “She's into the price of groceries. She is going to do what the military wants, and really what the president wants. She understands that national security is my thing. I thought it was a very honest answer.”

Norman went on the offense following Graham’s weak answer, saying, “You need to get fully versed in what issues you’re going to be dealing with. This isn’t a get training on the job, you can’t do that.”

Norman, who has represented South Carolina in the House since 2017, has presented himself as an experienced legislator with a track record as a conservative fighter, while calling Graham an "unknown candidate."

Backed by former South Carolina Gov. Nikki Haley, Norman has gone on record to challenge Trump by supporting her for the GOP nomination over the president in 2024.

Norman stood as one of the few candidates defying Trump’s endorsement of Graham, throwing his hat in the ring for the South Carolina Senate seat against the incumbent.

Graham's victory re-solidified the importance of having President Trump's endorsement for Republican candidates vying for elected office.