An early tracking poll for South Carolina’s 2026 special election for the U.S. Senate suggests that the Republican primary is still wide open, with multiple candidates competing for voter support and a significant share of respondents yet to make a final decision.

The survey, conducted between July 28 and July 30, questioned 989 respondents and reported a margin of error of approximately ±2.9 percentage points. As with any early polling, the results provide only a snapshot of voter sentiment during the survey period and should not be interpreted as a prediction of the final election outcome.

According to the poll, Darline Graham emerged as the leading candidate with 27.0% support. Russell Fry and Ralph Norman were tied for second place at 17.4% each, indicating a closely contested race among several well-known Republican figures. Former South Carolina Governor Mark Sanford followed with 15.1%, while Mark Lynch received 8.1%.

The remaining candidates recorded smaller levels of support, including Samuel Sam Shepherd, Duke Buckner, Mark McBride, and Clark Nielson. Notably, more than one in ten respondents remained undecided, highlighting that many Republican voters have yet to commit to a preferred candidate.

The sizeable undecided vote could prove decisive in the months ahead. As campaigns expand their outreach, participate in public debates, and release policy proposals, voter preferences may shift considerably before ballots are cast. Early surveys often change significantly as elections draw closer and public awareness of candidates increases.

Political analysts note that special elections frequently attract intense attention because turnout patterns can differ from regular election cycles. Candidate organization, fundraising, endorsements, grassroots campaigning, and voter mobilization efforts often have an outsized influence on the final result.

The race is also expected to reflect broader national political themes, including economic policy, immigration, public safety, healthcare, and government spending. Candidates are likely to tailor their messages to address both South Carolina’s local priorities and the issues shaping national political debate.

Public endorsements may also influence voter behavior. When prominent political figures share or comment on polling data, it can increase media attention and encourage supporters to engage more actively with a campaign. However, endorsements alone do not guarantee electoral success, as voters ultimately weigh candidate experience, policy positions, campaign performance, and personal credibility.

Election observers caution that polling represents public opinion at a specific moment rather than a definitive forecast. Differences in survey methodology, likely voter models, sample composition, and campaign developments can all influence future polling results.

As the special election campaign continues, additional surveys and public debates will offer a clearer picture of how the contest is evolving. With several candidates remaining competitive and a substantial number of undecided voters, the Republican primary remains fluid, setting the stage for an unpredictable and closely watched race in South Carolina.