President Donald Trump is set to headline a campaign rally in Myrtle Beach, South Carolina, on Friday evening to boost Senator Darline Graham's bid to keep her seat in the upcoming Republican runoff. The event, scheduled for 7 p.m. EDT, comes just days before Graham squares off against Representative Ralph Norman in a contest that will determine the GOP nominee for the remainder of the late Senator Lindsey Graham's term.

Graham, a political newcomer and sister of the late senator, was appointed last month by Governor Henry McMaster to fill the vacancy. She has leaned heavily on Trump's endorsement to solidify her standing among Republican primary voters, but her campaign has hit a rough patch following a widely criticized debate performance earlier this week, during which she struggled to answer questions on national security issues. That stumble has intensified scrutiny and injected fresh uncertainty into the race.

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The runoff has fractured the state's Republican establishment. Representative Russell Fry, who finished third in the initial primary, has thrown his support behind Graham, while former Governor Mark Sanford has endorsed Norman. The geographic split is notable: the rally is being held in Fry's 7th Congressional District, a sign of the importance of his backing to Graham's campaign.

Trump's appearance underscores the high stakes for both the president and Graham. A loss for Graham would be an embarrassment for Trump, who has made loyalty a central theme of his political brand. For Norman, a victory would signal that even the president's endorsement is not always decisive in intra-party fights.

Political analysts say the runoff will test the strength of Trump's influence in a state where he remains popular but where local dynamics and candidate quality also matter. Graham's lack of experience has become a central issue, with Norman campaign surrogates arguing that South Carolina needs a senator who can immediately handle complex defense and foreign policy portfolios.

Graham has sought to counter that narrative by emphasizing her family's legacy and her commitment to advancing Trump's agenda. In recent statements, she has highlighted her support for border security, energy independence, and a strong military, while trying to reassure voters that she is a quick study on policy matters.

The rally in Myrtle Beach is expected to draw a large crowd of Trump loyalists and may serve as a much-needed morale boost for Graham's campaign. Trump's schedule has been packed with high-profile events, including a recent visit to an Ohio steel town to push his economic message, and his decision to carve out time for this race signals its importance to his broader political strategy.

Observers note that the runoff outcome could have implications beyond South Carolina, as it may shape perceptions of Trump's ability to sway Republican primaries heading into the midterm cycle. A victory for Graham would reinforce the power of his endorsement, while a Norman win could embolden critics who argue that Trump's political capital is waning.

The runoff is set for next week, and both campaigns are expected to intensify their efforts in the coming days. For now, all eyes are on Myrtle Beach, where Trump will aim to deliver a decisive boost to Graham's candidacy.