William "Will" Davis
Photo: Alzheimer's Association Illinois Chapter, CC BY 2.0
DemocratIn office since Nov 2002

William "Will" Davis

Illinois State Representative, District 30 since 2002. Re-elected in 2026. Next on the ballot in 2028.

Illinois State Representative, District 30Born 1968

In office
24 yrs
Since 2002
Bills became law
10
55 sponsored, 2025–2026 session
Votes missed
0.4%
Chamber median 3.8%
With party
100%
On votes splitting the parties
Last margin
+56.4
Won 2024
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.

  • Appropriations: Elementary and Secondary Education · chair
  • Appropriations: Public Safety and Infrastructure
  • Child Care Accessibility and Early Childhood
  • Energy and Environment
  • Housing
  • Labor and Commerce

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

Legislation

2025–2026 session · 55 sponsored · 10 became law
BillIntroCmteHouseSenateLaw
SB 3070 EDUC-FOREIGN LANG ALTERNATIVE
Became law Aug 2026
HB 5181 FUNDS AND MANDATES-VARIOUS
Became law Aug 2026
HB 4714 CHILDREN'S MENTAL HLTH ACT
Became law Jul 2026
SB 3517 INS-GROUND AMBULANCE SERVICE
Became law Jul 2026
HB 3772 SCH CD-SUSPENSION/EXPULSION
Became law Jul 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 Illinois House of Representatives

Davis is closer to the center than 0% of the chamber's Democrats.

Dem. medianRep. medianDavisMore liberalMore conservative

Closest: Theresa Mah, Justin Slaughter, Will Guzzardi

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:49 PM ET

With Davis’s party

  • Votes with the chamber's Democrats100%
  • Cosponsorships of the other party's bills7%

Black tick: the average of Democrats in the Illinois House of Representatives.

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 Democrats.

DateBillDavisDem. majorityRep. majorityResult
May 31, 2026SB 3222: VIDEO STREAMING AD VOLUMEYesYesNoPassed 77–31
May 29, 2026SB 2762: INS-SEIZURE DETECTION DEVICEYesYesNoPassed 82–25
May 27, 2026SB 3020: DOMESTIC VIOLENCE-HARASSMENTYesYesNoPassed 91–23
May 21, 2026SB 2770: LOC FIRST RESPONDER INSURANCEYesYesNoPassed 89–21
Apr 17, 2026HB 4379: ADULT CHANGING STATIONSYesYesNoPassed 72–18

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.

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+/−
2026Illinois Representative District 30Won—D+56.1—
2024Illinois House of Representatives, District 30WonD+56.4——
2022Illinois House of Representatives, District 30WonD+60.2——
2020Illinois House of Representatives, District 30Won———
2018Illinois House of Representatives, District 30Won———
2016Illinois House of Representatives, District 30Won———
2014Illinois House of Representatives, District 30Won———
2014Illinois House of Representatives, District 30 (primary)Won———
2012Illinois House of Representatives, District 30Won———
2010Illinois House of Representatives, District 30Won———
2008Illinois House of Representatives, District 30Won———
2006Illinois House of Representatives, District 30Won———
2004Illinois House of Representatives, District 30Won———
2002Illinois House of Representatives, District 30WonD+59.1——

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

Campaign money, 2025–26

Raised
$205.3K
Spent
$213.9K
Cash
$73.6K

Source: Illinois State Board of Elections filings through Sep 30, 2026Updated Nov 1, 2026, 9:15 AM ET

Campaign committees

Open committees can still raise and spend money.

William Davis for State Representative
State
Active

Source: Illinois State Board of Elections filings through Sep 30, 2026Updated Nov 1, 2026, 9:15 AM ET

Seats Davis has held

Source: 99chambers results archive

Who Davis has run against

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

How we know Davis

One person, matched across every source we use.

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