RepublicanIn office since Nov 2022

Sydney Davis

South Dakota State Senator, District 17 since 2022. Ran in 3 elections between 2020 and 2024, winning 3. Re-elected in 2026. Next on the ballot in 2028.

South Dakota State Senator, District 17Born 1988

Official website Wikipedia

In office: 3 yrs; Since 2022
Bills became law: 34; 61 sponsored, 2025–2026 session
Votes missed: 4.8%; Chamber median 0.8%
With party: 55%; On votes splitting the parties
Last margin: +2.9; Won 2020
Next election: 2028; Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET

Committees

As of 2026-10.

Health and Human Services · vice chair
Agriculture and Natural Resources
Taxation

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

Legislation

2025–2026 session · 61 sponsored · 34 became law

BillIntroCmteSenateHouseLaw

HB 1292 limit the ability of a health carrier to recoup, recover, or retroactively deny previously paid claims.
Health Care · Became law Mar 2026

HB 1149 adopt the athletic trainer licensure compact.
Athletics · Became law Mar 2026

HB 1148 adopt the respiratory care interstate compact.
Compacts · Became law Mar 2026

HB 1220 regulate the sale of nicotine products, and to provide a penalty therefor.
Administrative Procedure · Became law Mar 2026

HB 1199 address prior authorization and reporting requirements by utilization review organizations and health…
Health Care · 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 Davis sits in the South Dakota State Senate

Davis is closer to the center than 82% of the chamber's Republicans.

Closest: Tim Reed, Glen Vilhauer, David Wheeler

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

With Davis’s party

Votes with the chamber's Republicans55%

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: Davis’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

Date	Bill	Davis	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.	Yes	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 Davis was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

202020212022202320242025202620272028South Dakota House of Representatives, District 17 South Dakota State Senate, District 17

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

Elections

Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.

Year	Race	Result	Margin	Seat	+/−
2026	South Dakota State Senate, District 17	Won	—	R+19.1	—
2024	South Dakota State Senate, District 17	Won	—	R+19.1	—
2022	South Dakota State Senate, District 17	Won	—	R+14.7	—
2020	South Dakota House of Representatives, District 17	Won	R+2.9	—	—