Mike Derby
Mike Derby is on the 2026 ballot for two Republican roles. He is the Sensible-endorsed candidate for SD State House · District 34 — a state legislative seat he currently holds. This row represents a separate party-organization role (precinct committeeman), not the legislative seat.
For his full biography, voting record, and our rationale for endorsing him, see sensiblesouthdakota.org/candidates/mike-derby-b76d89.
- Party
- Republican
- County
- Pennington
- District
- Pennington - Precinct 3-2
- Filing date
- 2026-01-14
Background only.
We’ve added public-record facts about this candidate so voters have context, but we aren’t taking an editorial stance on their fit with our five principles — neither an endorsement nor a rejection.
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Also running for
Precinct Committeeman · Pennington - Precinct 3-2
Every other candidate filed for this seat, listed for transparency. Our Sensible slate reflects the full field — not just a single pick.