President Donald Trump demonstrated his might with Republican primary voters Tuesday in South Carolina, as CNN’s Decision Desk projected that Darline Graham — the sister of the late Sen. Lindsey Graham and the president’s pick in the state’s special Senate primary runoff — will claim the GOP nomination.

The primary runoff in South Carolina between Sen. Darline Graham and Rep. Ralph Norman is another test of President Trump's influence. He's backing Darline, sister of the late…

The Trump-endorsed senator and political neophyte is in an unpredictable Aug. 25 Republican special primary runoff election against Rep. Ralph Norman.