TCTerraCivic

Federal candidate · 2025–2026 cycle

Billy Mawhiney

Party
Democratic
Running for
U.S. House · South Dakota at large
Filing address
Sioux Falls, SD (city and state on the FEC filing)
FEC filing name
MAWHINEY, BILLY
Next election
Primary June 2, 2026 · General November 3, 2026 (Wikipedia, checked October 22, 2026; confirm with your state election office)
Map of South Dakota with the 2026 district highlighted

South Dakota, at large

FEC page

DemocraticU.S. House · South Dakota at largeOpen seatWithdrawn

FEC candidate ID H6SD01133 · Principal campaign committee: BILLY FOR CONGRESS

Total raised$31,138.00
Total spent$31,138.00
Cash on hand$0.00
Debts owed by the campaign$0.00
Loans from the candidate$2,000.00

2025–2026 cycle totals through March 31, 2026, from the FEC’s candidate summary file. This is a dated snapshot, not live reporting; the FEC’s page for this candidate is the official source.

Where the money comes from

Individual contributions: $28,038.00PACs and other committees: $700.00Candidate’s own money (contributions and loans): $2,000.00Other receipts (loans from others, refunds, interest): $400.00
  • Individual contributions$28,038.0090%
  • PACs and other committees$700.002%
  • Candidate’s own money (contributions and loans)$2,000.006%
  • Other receipts (loans from others, refunds, interest)$400.001%

Self-funding: $2,000.00 (6% of money raised): $0.00 given and $2,000.00 lent by the candidate. $2,000.00 of loans repaid so far.

Individual money

  • Contributions of $200 or less (small-dollar, including unitemized)$6,747.0029%
  • Contributions over $200$16,521.0071%
  • Itemized from inside South Dakota$10,721.0063%
  • Itemized from other states$6,250.0037%

FEC-computed totals by contribution size and state, retrieved October 22, 2026. No individual contributor is named.

Raised and spent over time

$17K$0 OCTOBER QUARTERLY: raised $17,106.00OCTOBER QUARTERLY: spent $8,643.65YEAR-END: raised $11,058.00YEAR-END: spent $11,678.30TERMINATION REPORT: raised $2,974.00TERMINATION REPORT: spent $10,816.052025-092025-122026-03

Raised per report Spent per report Cash on hand

The race

South Dakota U.S. House, at-large seat, 2026 · 8 registered candidates

CandidateRaisedCash on handThrough
Billy Mawhiney (D)$31,138.00$0.002026-03-31
Marty Jackley (R)$1,737,520.15$1,050,140.782026-10-14
Dusty Johnson (R)$1,706,922.17$1,398,208.672026-10-14
Nicole Gronli (D)$421,803.07$22,490.732026-10-14
Casey Crabtree (R)$254,950.36$0.002026-09-30

Polling and ratings

Race ratings

Recent polls

PollsterDatesSampleMargin of errorResults
Mason-Dixon Polling & StrategyOctober 12–14, 2026500 (LV)± 4.5%Marty Jackley 60% · Nikki Gronli 32%
Lake Research Partners (D)August 26–30, 2026(LV)–Marty Jackley 47% · Nikki Gronli 43%

Ratings and polls as listed on Wikipedia: 2026 United States House of Representatives election in South Dakota (retrieved October 22, 2026), licensed CC BY-SA 4.0. TerraCivic does not rate races or compute its own average.

Sources and updates

  • Money: FEC bulk data (candidate summary, committee master, committee-to-candidate contributions), retrieved October 23, 2026. FEC candidate page · Principal campaign committee: BILLY FOR CONGRESS.
  • Polling, ratings and candidate status: Wikipedia, retrieved October 22, 2026 (CC BY-SA 4.0).
  • Status shown above comes from the race’s Wikipedia page.

TerraCivic shows public filings without scores, grades or judgments about any candidate.

Federal law prohibits using information copied from FEC reports to solicit contributions or for commercial purposes. Do not use TerraCivic for fundraising, donor prospecting, or contact lists. TerraCivic shows no individual contributor names, addresses, employers or amounts. Data use & privacy