In the 2026 South Dakota Senate primary, 2 outside groups spent $566K: $566K supporting Mike Rounds (R).
The result, as reportedunofficial
- Mike RoundsRepublican75.8%Won
- Justin McNealRepublican24.2%Lost
In the 2026 South Dakota Senate primary, Mike Rounds won by 68,943 votes, with 75.8% of the vote to Justin McNeal's 24.2%.
outside money
- supporting Mike Rounds (R)
- $566K
Outside money supporting and opposing each candidate
Both sides on one scaleMike Rounds Republican
$566K$566K supporting Mike Rounds
The candidates
What each candidate’s own campaign raised, beside what outside groups spent supporting and opposing them.
Mike Rounds
Republican
- Own campaign raised
- $3.2M
- Outside money supporting
- $566K
Justin McNeal
Republican
- Own campaign raised
- $10,993
- Campaign money to 30 Jun 2026
Week by week
Outside money each week, supporting and opposing the candidates, all candidates combined.
Week of 25 May 2026
Supporting $412K
The groups on each side
The biggest outside groups in this race, by what they spent supporting or opposing each candidate.
Spent supporting a candidate
- Defend American Jobssupporting Mike Rounds$412K
- South Dakota Conservative PACsupporting Mike Rounds$154K
Who’s connected to whom
The groups that spent supporting or opposing the candidates.
- Defend American Jobs spent supporting Mike Rounds · $412K
- South Dakota Conservative PAC spent supporting Mike Rounds · $154K
- Fairshake gave to Defend American Jobs · $37.0M
- Ripple Labs gave to Defend American Jobs · $250K
- Condorcet gave to South Dakota Conservative PAC · $100K
- Custom Management Services gave to South Dakota Conservative PAC · $50,000
Group
- Defend American Jobs spent $412K supporting Mike Rounds$412K
- Fairshake gave $37.0M to Defend American Jobs$37.0M
- Ripple Labs gave $250K to Defend American Jobs$250K
Go deeper
The paperwork behind this race, all of it. Free with an email sign-in.
The paperwork