South Dakota 2026 Election & Infrastructure Intelligence

# South Dakota 2026 Elections and Infrastructure Overview **Checkpoint date:** August 3, 2026 **Primary:** June 2, 2026 **Republican gubernatorial runoff:** July 28, 2026 **General election:** November 3, 2026 ## Election structure South Dakota's November ballot is led by Governor Larry Rhoden versus Democrat Dan Ahlers, incumbent Senator Mike Rounds versus Democrat Julian Beaudion, and Republican Marty Jackley versus Democrat Nikki Gronli for the open at-large House seat. The Public Utilities Commission race between Don Haggar and Frank Kloucek is especially relevant to Praevoium because the commission will help shape utility tariffs and infrastructure treatment for large-load customers. Rhoden won the first statewide gubernatorial primary runoff in South Dakota history after no Republican reached the required 35 percent threshold on June 2. He defeated Toby Doeden decisively on July 28. ## Praevoium infrastructure stakes South Dakota entered 2026 without an operating hyperscale data center but with two proposed projects totaling nearly 930 MW. That prospective load is significant for a relatively small statewide grid and triggered a broad legislative response covering incentives, utility-cost allocation, water, transparency, local permitting, nuisance impacts, and moratoria. The controlling enacted measure is SB 135, the Data Center Bill of Rights for Citizens. It applies to data centers with peak demand of at least 10 MW and requires separate utility service terms, reimbursement of attributable costs including stranded-cost exposure, preservation of local authority, projected-water-use compatibility review, and public water reporting. Governor Rhoden signed it March 24, 2026. Separate proposals included a one-year hyperscale moratorium, closed-loop cooling and water limits, decommissioning security, public reporting, nondisclosure restrictions, adjacent-jurisdiction permitting, nuisance controls, and sales-tax incentives. The election therefore conc

Race	Status	Candidates	Impact	Key issue
Governor - Statewide	See research	See candidate dossiers	Medium	Infrastructure and policy impact
U.S. Senate - Statewide	See research	See candidate dossiers	Medium	Infrastructure and policy impact

# South Dakota Race and Candidate Dossiers **As of:** August 3, 2026 ## Governor - Statewide - **Status:** General election set - **Praevoium impact:** Critical - **Candidates:** Larry Rhoden (R); Dan Ahlers (D) - **Polling:** No verified independent public general-election poll - **Key issues:** Data-center implementation; utility costs; water; local control; energy; agriculture; national security ## U.S. Senate - Statewide - **Status:** General election set - **Praevoium impact:** High - **Candidates:** Mike Rounds (R); Julian Beaudion (D) - **Polling:** No verified independent public general-election poll - **Key issues:** AI innovation; national security; energy; agriculture; broadband; federal infrastructure ## U.S. House - At-Large - **Status:** General election set - **Praevoium impact:** Critical - **Candidates:** Marty Jackley (R); Nikki Gronli (D) - **Polling:** No verified independent public general-election poll - **Key issues:** Statewide infrastructure; data centers; Ellsworth AFB; agriculture; tribal communities; water; broadband ## Public Utilities Commissioner - Statewide - **Status:** General election set - **Praevoium impact:** Critical - **Candidates:** Don Haggar (R); Frank Kloucek (D) - **Polling:** No verified independent public poll - **Key issues:** Large-load tariffs; grid expansion; ratepayer protection; utility cost allocation; transmission ## Candidate posture index ### Larry Rhoden - Governor - **Party:** Republican - **Ballot status:** Incumbent; GOP nominee - **Data-center posture:** **Conditional** - **Confidence:** High - **Evidence:** Signed SB 135, requiring separate data-center electric-service terms, full attributable cost reimbursement, local regulatory authority, and water-use review/reporting. - **Infrastructure alignment:** Signed the 2026 Data Center Bill of Rights; pro-business and infrastructure development with explicit resident protections. - **Backing/status:** Incumbent governor; South Dakota Republican Party nominee. - **Source:** https://sdlegislature.gov/Session/Bill/27028 ### Dan Ahlers - Governor - **Party:** Democratic - **Ballot status:** Democratic nominee - **Data-center posture:** **Unverified** - **Confidence:** Low - **Evidence:** No sufficiently specific direct public data-center position located by checkpoint. - **Infrastructure alignment:** Former state legislator; broader Democratic economic and public-service alignment recorded separately. - **Backing/status:** South Dakota Democratic Party nominee. - **Source:** https://www.sddp.org/2026-midterm-elections ### Mike Rounds - U.S. Senate - **Party:** Republican - **Ballot status:** Incumbent; GOP nominee - **Data-center posture:** **Enable** - **Confidence:** Medium - **Evidence:** Publicly promotes AI innovation as important to South Dakota and national security; no direct state siting framework was located. - **Infrastructure alignment:** Supports AI innovation, defense, infrastructure and energy development. - **Backing/s

# South Dakota Research Gaps and Refresh Rules ## Daily refresh priorities 1. Confirm the final certified November candidate list, including any independent or third-party additions. 2. Monitor new independent governor, Senate, House, and PUC polling. 3. Track Public Utilities Commission implementation of SB 135 and any utility-specific large-load tariffs. 4. Monitor proposed hyperscale projects, interconnection requests, water determinations, and local permits. 5. Enrich direct candidate statements and endorsements, especially Dan Ahlers, Julian Beaudion, Marty Jackley, Nikki Gronli, Don Haggar, and Frank Kloucek. 6. Track litigation, rulemaking, or amendments affecting the Data Center Bill of Rights. ## Classification rule Do not infer a posture from party affiliation. Use **Unverified** until direct statements, votes, official plans, regulatory actions, or reliable project-specific evidence are located. ## Polling rule Label pollster, sponsor, field dates, sample, method, and