United States Representative
November 3, 2026 · Congressional District (at Large) (119th Congress), South Dakota · U.S. House district · general
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: Low · 18 out of 100
This district is large for its type, so each vote is a smaller slice of the outcome. About 907,428 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(1,021,191 ÷ 907,428) ÷ ln(1,021,191 ÷ 546,488) = 18.89, comparing all US House districts nationwide (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: Unknown
No past results for this contest yet.
Low representation + unknown decisiveness → Below average vote impact.
Some data is missing, so this rating is based on partial information and capped at "High".
United States Representative is responsible for:
- Voting on federal laws, taxes, and the federal budget
- Representing their district's interests in Congress
- Starting tax and spending bills, which must begin in the House
- Helping district residents deal with federal agencies
Affected Areas: Environment and Public Health, Reduce Wealth Gap, Anti-Corruption, Government Efficiency, Healthcare Affordability, Immigration, Government Spending Reduction, Social Programs and Welfare, Gun Control, Women's Reproductive Rights, National Defense, Personal Income Tax Reduction, Foreign Trade, Data Privacy, Civil Rights, Corporate Accountability, Public Infrastructure, Peaceful Foreign Policy
Candidates
Marty Jackley
REP · declared
Marty Jackley is South Dakota's Attorney General and a Republican candidate for South Dakota's at-large U.S. House seat. His campaign says he has served South Dakota as Attorney General and as United States Attorney.
Records: Anti-Corruption 2 for, Corporate Accountability 2 for, 1 against, Data Privacy 3 for, Government Efficiency 1 for, Government Spending Reduction 1 for, Healthcare Affordability 1 for, Public Infrastructure 1 for, Social Programs and Welfare 1 for, Women's Reproductive Rights 1 against
Nicole "Nikki" Gronli
DEM · declared
Nicole "Nikki" Gronli is a South Dakota U.S. House candidate, small business owner, and rural Dell Rapids resident. Her campaign biography says she led USDA Rural Development in South Dakota from 2022 to 2025 and has experience in marketing, communications, and community leadership.
Records: Corporate Accountability 1 for, Foreign Trade 1 against
Election sources
Source: sdsos.gov
Source: vip.sdsos.gov