President Trump secured two major victories in South Carolina and Oklahoma as his endorsed candidates won key GOP primary runoff races for the Senate and governor’s office. The results highlight the president’s continued sway within the Republican Party, following recent successes with his preferred candidates in other high-profile contests. With several of his backed candidates facing off in upcoming elections, the outcomes could further shape the party’s direction ahead of the general elections. The races underscore the tight alignment between Trump’s political strategy and the GOP’s grassroots support.


President Trump notched two critical wins in South Carolina and Oklahoma on Tuesday, with Sen. Darline Graham (S.C.) and former state Sen. Mike Mazzei (Okla.) clinching the GOP nominations in their respective primary runoff races. The Republican contests for South Carolina Senate and Oklahoma governor served as another key test of the president’s influence in the GOP as several of his gubernatorial and House picks have...