RepublicanIn office since Nov 2022

Randy Deibert

South Dakota State Senator, District 31 since 2022. Re-elected in 2026. Next on the ballot in 2028.

South Dakota State Senator, District 31Born 1958

Official website Wikipedia

In office: 3 yrs; Since 2022
Bills became law: 52; 82 sponsored, 2025–2026 session
Votes missed: 0.0%; Chamber median 0.8%
With party: 54%; On votes splitting the parties
Next election: 2028; Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET

Committees

As of 2026-10.

Retirement Laws · vice chair
Retirement Laws · chair
Transportation · chair
Bonding
Commerce and Energy
Executive Board
Legislative Procedure
Legislative Procedure
State Affairs

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 82 sponsored · 52 became law

BillIntroCmteSenateHouseLaw

SB 204 revise certain criteria for loans from the South Dakota housing infrastructure fund.
Fund · Became law Mar 2026

SB 132 modify provisions related to the South Dakota Veterans Council.
State Affairs and Government · Became law Mar 2026

HB 1299 permit the use of biological filtration systems in water recreational facilities located in certain lodging…
Administrative Procedure · Became law Mar 2026

HB 1066 revise a provision related to theft by a contractor, subcontractor, or supplier.
Crimes · Became law Mar 2026

HB 1089 modify the distributions of revenues collected from severance taxation on new permits.
Minerals · Became law Mar 2026

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where Deibert sits in the South Dakota State Senate

Deibert is closer to the center than 88% of the chamber's Republicans.

Closest: Brandon Wipf, Helene Duhamel, Kyle Schoenfish

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:01 PM ET

With Deibert’s party

Votes with the chamber's Republicans54%

Black tick: the average of Republicans in the South Dakota State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Deibert’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

Date	Bill	Deibert	Rep. majority	Dem. majority	Result
Mar 9, 2026	HB 1082: establish parameters for the reimbursement of school districts that provide free or…	Yes	Yes	Yes	Passed 20–14
Mar 5, 2026	HB 1245: authorize municipalities to establish a local funding mechanism for capital improvement…	Yes	Yes	Yes	Passed 19–15
Mar 5, 2026	HB 1138: require the licensure of non-medical home care agencies, and to provide a penalty therefor.	Yes	Yes	Yes	Passed 20–14
Mar 4, 2026	HB 1263: eliminate an exclusion from the definition of an agricultural equipment dealer.	No	Yes	No	Passed 28–6
Mar 3, 2026	HB 1313: require education in prenatal human growth and development.	Yes	Yes	No	Passed 31–3

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time Deibert was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

2022202320242025202620272028South Dakota State Senate, District 31

Source: 99chambers results archive (MEDSL, Klarner, state election offices)