Jeff Smith
Photo: WisPolitics.com, CC BY-SA 2.0
DemocratIn office since Nov 2018

Jeff Smith

Wisconsin State Senator, District 31 since 2018. Ran in 9 elections between 2004 and 2022, winning 5. Re-elected in 2026. Next on the ballot in 2030.

Wisconsin State Senator, District 31Born 1955

In office
7 yrs
Since 2018
Bills became law
3
242 sponsored, 2025–2026 session
Votes missed
0.0%
Chamber median 0.0%
With party
95%
On votes splitting the parties
Last margin
+16.9
Won 2026
Next election
2030
Nov 5, 2030

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

Committees

As of 2026-10.

  • Health
  • Legislative Council
  • Legislative Organization
  • Organization
  • Utilities, Technology and Tourism

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

Legislation

2025–2026 session · 242 sponsored · 3 became law
BillIntroCmteSenateHouseLaw
SB 255 Relating to: regulation of the Chippewa and Flambeau Improvement Company.
Corporation · Became law Aug 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Smith sits in the Wisconsin State Senate

Smith is closer to the center than 71% of the chamber's Democrats.

Dem. medianRep. medianSmithMore liberalMore conservative

Closest: Jamie Wall, Jodi Habush Sinykin, Kristin Dassler-Alfheim

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:09 PM ET

With Smith’s party

  • Votes with the chamber's Democrats95%
  • Cosponsorships of the other party's bills24%

Black tick: the average of Democrats in the Wisconsin State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

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

Career

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

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.

YearRaceResultMarginSeat+/−
2026Wisconsin State Senate, District 31WonD+16.9D+2.2+14.7
2022Wisconsin State Senate, District 31WonD+0.9——
2018Wisconsin State Senate, District 31WonD+5.7——
2014Wisconsin State Assembly, District 93LostR+10.8——
2014Wisconsin State Assembly, District 93 (primary)Won———
2012Wisconsin State Assembly, District 93LostR+1.6——
2010Wisconsin State Assembly, District 93LostR+0.3——
2008Wisconsin State Assembly, District 93WonD+18.9——
2006Wisconsin State Assembly, District 93WonD+1.3——
2004Wisconsin State Assembly, District 93LostR+4.6——

Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET

Campaign money, 2025–26

Raised
$847.8K
Spent
$427.5K
Cash
$198K

Source: Wisconsin Ethics Commission filings through Oct 31, 2026Updated Nov 1, 2026, 1:46 AM ET

Campaign committees

Open committees can still raise and spend money.

Together With Jeff Smith
State
Active

Source: Wisconsin Ethics Commission filings through Oct 31, 2026Updated Nov 1, 2026, 1:46 AM ET

Seats Smith has held

Source: 99chambers results archive

Who Smith has run against

Source: 99chambers results archive; 2026: civicAPI (unofficial)

How we know Smith

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET