Stephanie Arne
Won the 2026 race for South Dakota Legislative District 12.
- Last margin
- +1.2
- Won 2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative records
Every race Arne has run
Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Arne won voters the party’s presidential nominee did not; primaries have no baseline.
| Year | Office | Stage | Result | Opponents | Share | Margin | Raised | Baseline | Against baseline |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | South Dakota Legislative District 12 | General | Won | Amber Arlint (R), Kerry Loudenslager (R) | 36.3% | D+1.2 | $23.8K | R+5.3 |
Source: 99chambers results archive; 2026: South Dakota Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Money
Arne’s campaign fundraising.
- Raised, 2025–26
- $23.8K
Source: South Dakota Secretary of State filings through Oct 20, 2026Updated Nov 1, 2026, 2:15 AM ET
What’s next
From campaign filings, not from public statements.
| Arne for SD State | Active |
Source: South Dakota Secretary of State filings through Oct 20, 2026Updated Nov 1, 2026, 2:15 AM ET
Who Arne has run against
- Amber Arlint (R) · 2026 general, won
Source: 99chambers results archive; 2026: South Dakota Secretary of State (unofficial)
The seat
- South Dakota Legislative District 12 · lean R+4.7 · 7th most Democratic of 34
Source: 99chambers: presidential results on current lines (MEDSL precinct returns)