South Carolina Republicans Vote Tuesday to Replace Graham on the November Ballot

What happens Tuesday

On Tuesday, August 11, 2026, South Carolina Republicans cast ballots in a special primary to pick the party nominee for the U.S. Senate seat once held by Lindsey Graham (Ballotpedia, 2026; AARP South Carolina, August 7, 2026). Polls open from 7 a.m. to 7 p.m. Early voting ran August 5 through August 7. If no candidate wins a majority, a runoff is set for August 25 (League of Women Voters of South Carolina; WYFF, August 2026).

The special primary exists because Graham, who had already won the June 9 Republican primary, died on July 11, 2026, at age 71 (The Washington Post, July 12, 2026). Under state rules, the vacancy in the nomination required a fresh Republican contest. The Democratic nominee, pediatrician Annie Andrews, is already set for the November 3 general election (Wikipedia, 2026 United States Senate election in South Carolina).

Who is on the ballot

Filing closed July 28. Ten candidates appear on the August 11 Republican ballot, including interim Sen. Darline Graham, the late senator's sister, whom Gov. Henry McMaster appointed to finish the current term; U.S. Reps. Ralph Norman and Russell Fry; and former governor and congressman Mark Sanford (League of Women Voters of South Carolina; Ballotpedia, 2026). The rest of the field includes Duke Buckner, Danny Lee Ford II, Mark Lynch, Mark McBride, Glenda Gail Parker, and Samuel Shepard (League of Women Voters of South Carolina).

Cook Political Report rates the general election Solid Republican and notes President Trump's support for Darline Graham after her appointment (Cook Political Report, SC Senate 2026). The nomination fight is an intraparty contest in a deep red state. It is not a contest for chamber control. The compressed calendar is part of the story. Candidates had from July 21 to July 28 to file, then roughly two weeks of campaigning before the special primary (CNN, July 12, 2026; PBS NewsHour, July 28, 2026). That is a sprint, not a normal primary season, and name recognition among the sitting members and the interim senator is the resource that travels farthest in a short window.

What the last poll of the field shows

An Emerson College poll released in late July found Ralph Norman leading the special primary field at 22 percent, followed by Darline Graham at 19 percent, Russell Fry at 12 percent, Mark Sanford at 11 percent, Mark Lynch at 7 percent, and Danny Ford at 2 percent (The Hill, July 30, 2026; Emerson College Polling, 2026). No candidate approached 50 percent. Emerson's own writeup treated a runoff as the base case.

That is the honest way to hold a multi candidate primary number. A 22 percent lead is real. It is not a majority. South Carolina's majority threshold is why August 25 sits on the calendar. Whoever emerges will face Andrews on November 3 for a full six year term. The general election opponent is fixed. Annie Andrews won the Democratic nomination earlier in the cycle and will face whoever the Republican primary produces (Wikipedia, 2026 United States Senate election in South Carolina). South Carolina has not elected a Democrat to the U.S. Senate since 1998, when Ernest Hollings won his final term, and Cook does not rate 2026 as the year that drought ends (Cook Political Report, SC Senate 2026).

Why the majority math barely moves

US Political Rank tracks the 35 seats on the 2026 ballot. Democrats need a net gain of four for a majority. In the ranking of the 2026 Senate races by flip likelihood, South Carolina sits at the bottom of the competitive board, scored as essentially safe for the Republican nominee (US Political Rank, 2026). Cook's August ratings list the seat among the Solid Republican holds, not among the four Toss Ups (Cook Political Report, Senate Race Ratings, August 5, 2026).

The appointment already restored the party line in the chamber. McMaster named Darline Graham days after the death, and the Republican seat count returned to where it stood before the vacancy (Ballotpedia, 2026). Tuesday's primary chooses who carries the nomination into November. It does not open a realistic path for a party flip. For the mechanics of how empty Senate seats get filled across the country, see the site's explainer on what happens when a Senate seat goes empty. Cook's full Senate board on August 5 listed four Toss Ups, three Lean Democratic seats, and fourteen Solid Republican seats among the thirty five races on the ballot (Cook Political Report, August 5, 2026). South Carolina is in the Solid Republican column. The competitive work of the cycle is happening in places like Alaska, Maine, North Carolina, and Ohio, which is exactly how US Political Rank orders the board in its flip likelihood ranking.

What to watch after the first count

Three facts will settle quickly. First, whether any candidate clears a majority on August 11 or whether the top two advance to August 25. Second, whether the winner is the appointed interim senator, a sitting House member, or another name from the ten person field. Third, whether the general election remains the low drama contest the ratings treat it as once the Republican nominee is fixed.

The process is the American system working under pressure. A sudden death, a governor's appointment, a special primary, a possible runoff, and a November general election on the regular calendar. The person is gone. The seat keeps a voice. The voters of one party choose the next nominee on Tuesday.