General election · 3 November 2026

State House, District 21

2 candidates on the ballot, listed in certified ballot order.

Race type: Contested
Candidates: 2
Surveys returned: 0 of 2
Race receipts: $32,980

Jim Halverson

Sitting legislator · Journeyman Electrician, Winner

RepublicanBallot order 1Filed 18 Feb 2026

Where they stand on data centers

67%protective votes — 2 of 3 tracked roll calls

Split record

Survey: no response recorded

The position above is drawn from roll-call votes only. This candidate has not answered the questionnaire in their own words.

Ask them to answer

Money — a signal, never a position

$22,270Total receipts reported

$630From flagged donors

Utility, power and energy interests$150
The PAC funnel$480

Flagged donors on recordDusty PAC $480 [C]; Otter Tail Corporation PAC $150 [B]

Spent for them by others

Independent expenditure. This is not the candidate’s money and they do not control it.

Independent expenditure spent for them$33,761

Committee: Jim Halverson For House.

A flag means a donor matched a category. It is not a finding that anything improper happened.

How to reach them

Official emailJim.Halverson@sdlegislature.gov
Campaign emailjcjhalv@gwtc.net
Switchboard(605) 773-3851
Campaign phone(605) 840-2290
Websitehalversonforhouse.com

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Marty Overweg

Sitting legislator · Ag Businessman/Farmer, New Holland

RepublicanBallot order 2Filed 20 Feb 2026

Where they stand on data centers

80%protective votes — 4 of 5 tracked roll calls

Stood with residents

Survey: no response recorded

The position above is drawn from roll-call votes only. This candidate has not answered the questionnaire in their own words.

Ask them to answer

Money — a signal, never a position

$10,710Total receipts reported

—From flagged donors

No itemized donors filed. That is not the same as having raised nothing.

Committee: Marty Overweg For South Dakota.

A flag means a donor matched a category. It is not a finding that anything improper happened.

How to reach them

Official emailMarty.Overweg@sdlegislature.gov
Campaign emailoverwegfeed@midstatesd.net
Switchboard(605) 773-3851
Campaign phone(605) 680-5191

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What the flags mean

A · Data center and Big Tech: The industry itself, its lobbyists, and the trade group that testified for the 50-year tax break.
B · Utility, power and energy: Utilities, generators, transmission and the ethanol bloc — interests whose revenue rises with data center load.
C · The PAC funnel: Money arriving through a political action committee rather than directly.
D · Named individuals: People named in the underlying investigation.
E and F · Outside money: Large national spending and independent expenditure made for a candidate. Never the candidate’s own money, and never added to their receipts.

How the score is built

Roll calls on 2026 data center bills are tracked. A vote counts as protective when it sided with residents on cost, water, or local control.

Candidates with no legislative service have no score. That is shown as an absence, never as a zero.

Full roll calls and bill text: the legislative scorecard.

Correct the record

Every figure here traces to a state-published filing. If something is wrong, we want to fix it fast.

Candidates may submit a questionnaire response at any time; it is published verbatim beside the voting record.

Email corrections through the Elections page.