South Dakota voters will soon be able to challenge the citizenship status of other registered voters. Governor Larry Rhoden has signed a new law that adds citizenship to the list of reasons a voter’s registration can be challenged. The law takes effect July 1, so it will not impact the June primary.
State law already allows challenges based on residency or registration in another state. Under the new measure, challenges can be filed by the Secretary of State, county auditors, or any voter in the same county. Each challenge must include a sworn statement and documented evidence. If a county auditor finds the challenge valid, the voter will have a chance to provide proof of eligibility.
Supporters say the law strengthens election integrity. Opponents argue it could lead to unnecessary scrutiny of lawful voters and add burdens for election officials.
The legislation follows several recent efforts focused on citizenship and voting. In 2024, the state canceled 273 voter registrations belonging to non‑U.S. citizens who were mistakenly added through the driver’s license system. Only one of those individuals had ever cast a ballot.
The new law is part of a broader national debate. Congress is considering the federal SAVE Act, which would require proof of citizenship to register to vote.




