South Dakota’s candidates for its lone U.S. House seat are sharpening a clear economic choice for voters: Democratic nominee Nikki Gronli is proposing direct federal action on tariffs, health costs and Social Security, while Republican nominee Marty Jackley is emphasizing lower taxes, restrained spending and targeted support for agriculture.
Gronli released a package Wednesday that calls for returning to tariff policies used before President Donald Trump’s current term, expanding Medicare drug-price negotiations, imposing a $35 monthly insulin cap for all patients and removing the wage ceiling on Social Security payroll taxes. She also proposed more funding for independent meat processors and a new tax credit intended to help rebuild cattle herds, though she did not release details for that credit, according to South Dakota Searchlight’s account of the announcement.
The tariff dispute is especially consequential in an agriculture-heavy state. Gronli argues the current duties raise costs for families and producers and says Congress should end tariffs on critical farm inputs. Her campaign priorities also call for country-of-origin labeling, year-round E15 sales, stronger crop insurance and investments in rural infrastructure, broadband, housing and child care.
Jackley has offered a different approach. In a candidate interview published Tuesday, he identified federal debt and deficits as his top economic concern, arguing that government spending contributes to inflation. He also opposed recent foreign beef imports and cited bipartisan work with other state attorneys general as evidence that he could build coalitions in Congress.
On trade, Jackley has not rejected tariffs outright. In a July interview, he said tariffs can be useful leverage but should be used sparingly, and that farmers and ranchers should receive temporary assistance when trade measures increase their costs. He also backed moving a farm bill without further delay and opposed new or increased taxes.
What voters are deciding
The contrast is not simply over how much Washington should spend. Gronli’s plan relies on specific federal interventions—price limits, wider bargaining authority, grant programs and a broader Social Security tax base. Jackley’s case rests on reducing government’s footprint, preserving lower tax rates and using federal policy more selectively.
The South Dakota Secretary of State’s candidate list confirms Gronli and Jackley as the major-party nominees for the statewide at-large seat. The office is open after incumbent Rep. Dusty Johnson pursued the governorship. The general election is Nov. 3; advance voting is underway, and the registration deadline is Oct. 19.
For South Dakotans, the emerging decision is therefore unusually concrete: whether affordability pressures call for direct federal price and benefit policies, or whether debt reduction, lower taxes and narrower intervention offer the better route. Neither candidate controls those outcomes alone, but the winning representative will vote on the next farm bill, tax policy, trade authorities and the long-term financing of Social Security.
