Tuesday's Republican Senate runoff in South Carolina has become a pivotal gauge of President Trump's endorsement power, as he campaigns aggressively for a political newcomer aiming to keep her late brother's seat. The race pits Sen. Darline Graham, appointed to fill the vacancy left by her brother Lindsey Graham's death, against Rep. Ralph Norman, a staunch conservative with a decade of House service.
Trump has thrown his full weight behind Graham, holding a Friday night rally in Myrtle Beach where he urged supporters to treat the election as if he were on the ballot. "Just say that I'm on the ballot one more time," he said, emphasizing the stakes. His super PAC, MAGA Inc., has also invested over $827,000 in her campaign, marking its first independent expenditure since March, a sign of the race's national significance.
The contest has split the GOP establishment, with Graham drawing support from the National Republican Senatorial Committee, business leaders, and the state's governor, who appointed her. Norman, meanwhile, has positioned himself as the anti-establishment candidate, self-funding much of his effort and accusing Graham of being "controlled by the Washington elite."
Graham's campaign has been rocky, highlighted by a debate stumble when she admitted she wasn't well-versed on national security issues, specifically regarding Taiwan and the South China Sea. "I'm not that informed on national security," she said, a remark that dominated headlines and raised doubts about her readiness for a six-year Senate term. Geoffrey Skelley of Decision Desk HQ noted that such a moment could define her candidacy if she loses, calling it a potential "defining moment."
Norman has refrained from negative attacks, citing Graham's recent personal loss, but he has stressed her lack of experience. "You need to get fully versed in what issues you're going to be dealing with," he argued during the debate, adding that the Senate is not a "get-training-on-the-job" position.
Graham has leaned into her outsider status, telling Fox News' Sean Hannity that she "tripped up" but that voters appreciate her honesty. "I'm not a politician, certainly not a career politician," she said. Trump echoed that defense, calling her "honest" and noting she has "very good people" around her.
The funding battle has been intense, with super PACs pouring millions into the race. Security is Strength PAC contributed over $1.8 million, and Palmetto Action gave nearly $1.2 million in the final week, according to FEC filings. Norman has attacked Graham's donor list, which includes Boeing's PAC and executives from Blackstone, TikTok, and Palantir, painting her as a tool of special interests. Graham dismissed the criticism, saying, "When people give to me, that means they support me," but added that support doesn't imply she backs their agendas.
The runoff's outcome will be closely watched as a barometer of Trump's influence in GOP primaries, especially as he faces his own legal challenges. A loss could signal waning sway, while a win would bolster his position as the party's kingmaker. The super PAC's financial push underscores the national stakes.
Beyond the immediate race, the result may shape the Senate's balance of power and the GOP's direction. Graham's debate stumble on Taiwan policy also echoed broader foreign policy debates within the party, where Trump's "America First" stance has often clashed with traditional hawkishness. As voters head to the polls, the political world watches to see whether Trump's endorsement still carries the weight it once did.
