COLUMBIA, S.C. (AP) — Just two months after nominating Lindsey Graham to return to the U.S. Senate, South Carolina Republicans are casting ballots Tuesday in a special primary to pick a replacement following the sudden death of the president’s close ally. Graham’s sister, Darline Graham, a political unknown tapped to serve out the final months of her brother’s term, is trying to overcome skepticism about her lack of experience in her campaign to replace him. She picked up President Donald Trump’s swift endorsement though the rare open Senate seat has attracted a broad field, including some of the state’s top Republicans.For decades, South Carolina voters have reliably returned Lindsey Graham to Washington despite periodic primary challengers who accused the dealmaker and foreign policy hawk of being insufficiently conservative. Tuesday’s contest features one of Lindsey Graham’s foes from earlier this year, as well as two U.S. House members as well as Mark Sanford, the former governor and congressman who is seeking a political comeback in a field crowded with familiar faces.

Will goodwill toward Lindsey Graham boost his sister at the polls?Lindsey Graham suffered a tear in his aorta at his Washington home and died on July 11. Before funeral observances for Lindsey Graham in Washington and South Carolina had even concluded, the campaign was on. State law proscribes a compressed timeline that forced candidates to navigate the decorum of mourning the senator’s death while also jockeying to replace him.