The South Dakota Supreme Court ruled on November 10, 2026, to uphold the candidacy of Celestine Stadnick for the State Senate in District 27. The court's decision came after Anthony Kathol challenged Stadnick's nomination, claiming that her candidacy was invalid due to issues with her nominating petitions. This ruling is significant as it confirms the validity of Stadnick's candidacy, allowing her to continue her campaign in the upcoming election.

The case, titled Kathol v. Johnson, Stadnick, involved a dispute over the validity of Stadnick's candidacy based on the signatures collected for her nomination. Kathol, who is also running for the same Senate seat, argued that numerous signatures on Stadnick's petitions were defective and that her declared address did not match her voter registration. The South Dakota Supreme Court's decision impacts not only the candidates involved but also sets a precedent for how similar challenges may be handled in future elections.

The parties involved in this case include Anthony Kathol, the appellant, who represented himself in court, and Monae L. Johnson, the Secretary of State, along with Celestine Stadnick, the intervenor and appellee. The dispute originated when Kathol filed an affidavit with the Secretary of State, alleging that Stadnick's candidacy was invalid due to discrepancies in her nomination paperwork. Kathol claimed that the address listed on Stadnick's declaration of candidacy did not match her voter registration, which he argued should invalidate her candidacy.

The Secretary of State reviewed Kathol's claims and found that while some signatures on Stadnick's petitions were indeed invalid, there were still enough valid signatures to certify her candidacy. Kathol then appealed this decision to the circuit court, which upheld the Secretary's ruling. The circuit court also found that the address discrepancy did not invalidate Stadnick's candidacy. Kathol subsequently appealed to the South Dakota Supreme Court.

In its ruling, the South Dakota Supreme Court affirmed the lower court's decision. Justice Scott P. Myren stated, "There is not a statutory requirement that a candidate’s residence address be the same as the address affiliated to where the candidate is registered to vote and accordingly [it] cannot be considered an essential element." The court also noted that the circuit court had correctly determined that the signatures which listed the county as "Oglala" instead of "Oglala Lakota" had substantially complied with the requirements of the law.

The court emphasized that substantial compliance allows for some flexibility in interpreting the law, particularly when the intent of the statute is met. The ruling clarified that while Kathol raised concerns about the validity of certain signatures, the court would only consider those challenges that had been presented to the Secretary of State in the initial affidavit. The court ruled that the circuit court had exceeded its authority by considering challenges that were not previously raised.

The South Dakota Supreme Court's decision has implications for future elections and challenges to candidacies. It reinforces the idea that candidates must meet specific requirements, but it also acknowledges the importance of substantial compliance with those requirements. This ruling is likely to influence how election officials and candidates approach nomination petitions moving forward.

Looking ahead, it remains to be seen whether Kathol will seek further legal recourse following this ruling. The court's decision can be appealed, but it is unclear if Kathol plans to pursue that option. There are no related cases currently pending that would directly impact this ruling, but the outcome may inspire other candidates to challenge similar issues in the future.