# Donald Trump’s Republican political influence > Live situation record from CLSTR: https://clstr.news/situations/donald-trumps-republican-political-influence > Updated: 2026-08-29T02:51:42.000Z. Sources: 34. Developments: 4. Donald Trump’s influence within the Republican Party has come under scrutiny during the 2026 midterm election cycle. Initially, strategist Karl Rove advised Trump to minimize his public profile to prevent Democrats from linking candidates to his 39 percent approval rating. While his endorsed candidates previously secured primary victories, recent results indicate a potential fracture in his ability to command the conservative coalition. Scott Huffmon, director of the Center for Public Opinion and Public Policy Research at Winthrop University, noted that while Trump’s control remains ‘overwhelming’, his ability to command votes for specific candidates is beginning to fracture. Factors such as the rising cost of living and conflicts with Iran have impacted his credibility. In Florida, the limits of his endorsement were demonstrated when Congressman Cory Mills lost his race despite receiving Trump’s support. However, Trump recently secured significant victories in Republican primary runoffs in South Carolina and Oklahoma, interrupting a series of losses for his endorsed candidates. In South Carolina, Darline Graham won the Republican nomination for the U.S. Senate seat previously held by her late brother, Lindsey Graham, defeating Representative Ralph Norman with 52% of the vote. Despite criticism regarding her lack of experience and a debate performance where she remarked that national security was ‘not my thing’, Trump’s endorsement proved decisive. In Oklahoma, Mike Mazzei won the Republican gubernatorial runoff, narrowly defeating Attorney General Gentner Drummond by campaigning on property tax reductions and supporting a $4 billion aluminum smelter project. Despite these wins, challenges to Trump’s authority persist. His approval rating has reached a historic low of 33%. Nevertheless, data from nearly 500 primary contests held throughout the year suggests he maintains significant sway; candidates endorsed by Trump secured official nominations in approximately 96% of those races, with only 12 supported politicians losing their primaries during this cycle. ## Claims - Darline Graham won the Republican nomination for her Senate seat in South Carolina. (corroborated by 7 sources) - The victories of Darline Graham and Mike Mazzei interrupt a recent losing streak for Donald Trump's endorsed candidates. (corroborated by 5 sources) - Mike Mazzei received Donald Trump's endorsement after supporting a $4 billion aluminum smelter project backed by United Arab Emirates investments. (corroborated by 5 sources) - Donald Trump's ability to influence votes for specific candidates is beginning to weaken in various regions. (corroborated by 4 sources) - While Trump's control over the Republican Party has diminished, it remains significant. (corroborated by 4 sources) - Florida Republican primaries showed limits to presidential support when Congressman Cory Mills lost despite Trump's endorsement. (corroborated by 4 sources) - The war against Iran and the rising cost of living have impacted Donald Trump's credibility. (corroborated by 4 sources) - Darline Graham stated that national security is ‘not my thing’ during a televised debate. (corroborated by 4 sources) - Mike Mazzei won the Republican primary for governor in Oklahoma. (corroborated by 4 sources) - Darline Graham is the younger sister of the late Senator Lindsey Graham. (corroborated by 3 sources) - The Trump administration has initiated a trade war with Canada. (corroborated by 2 sources) ## Timeline ### 2026-08-29: Donald Trump maintains strong influence in Republican primaries Donald Trump's influence remains strong in the Republican Party, with endorsed candidates winning approximately 96% of nearly 500 primary contests this year. 2 sources. https://clstr.news/cluster/donald-trump-maintains-strong-influence-in-republican-primaries ### 2026-08-25: Trump-endorsed candidates win Republican runoffs in South Carolina and Oklahoma Trump-endorsed candidates Darline Graham and Mike Mazzei won key Republican runoff elections in South Carolina and Oklahoma, reversing a recent string of losses for the former president's endorsed candidates. 25 sources. https://clstr.news/cluster/donald-trump-faces-challenges-to-republican-party-control ### 2026-08-22: Republican primaries reveal cracks in Donald Trump's electoral influence Republican primaries indicate growing cracks in Donald Trump's influence over the conservative coalition, as seen in Florida and through shifting voter trends regarding his endorsed candidates. 6 sources. https://clstr.news/cluster/republican-primaries-reveal-cracks-in-donald-trumps-electoral-influence ### 2026-08-19: Donald Trump's political influence faces scrutiny amid primary shifts Karl Rove urges Donald Trump to limit his campaign profile to protect GOP midterm prospects, while Angie Nixon secures a major Democratic primary upset in Florida. 2 sources. https://clstr.news/cluster/donald-trumps-political-influence-faces-scrutiny-amid-primary-shifts --- Cite as: Donald Trump’s Republican political influence. CLSTR, https://clstr.news/situations/donald-trumps-republican-political-influence