DemocratIn office since Nov 2017

Patrick Diegnan

New Jersey State Senator, District 18 since 2017. Next on the ballot in 2027.

New Jersey State Senator, District 18

In office
8 yrs
Since 2017
Bills became law
33
183 sponsored, 2025–2026 session
Votes missed
0.9%
Chamber median 2.7%
With party
100%
On votes splitting the parties
Last margin
+28.0
Won 2023
Next election
2027
Nov 2, 2027

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET

Committees

As of 2026-10.

  • Transportation · chair
  • Budget and Appropriations

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

Legislation

2025–2026 session · 183 sponsored · 33 became law
BillIntroCmteSenateHouseLaw
A 4854 Modifies method of allocating State aid for providing auxiliary and remedial services to nonpublic school…
EDUC FINANCE · Became law Jan 2026
A 3016 Allows follow-up communication by operators of mental health and suicide crisis resources centers or 9-8-8…
HUMAN SVCS · Became law Jan 2026
A 5076 Requires State Police to establish recovery leave policy for troopers presenting proof of pregnancy.*
POLICE · Became law Jan 2026
S 2697 Permits certain motor vehicles to display both amber and green warning lights.
MOTOR VEHICL · Became law Jan 2026
S 4313 Designates overpass of Stelton Road on Interstate Highway Route 287 as "Officer Conklin-Officer Cady…
HIGHWAYS · Became law Jan 2026

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

Voting record

2025–2026 session · placement by roll-call votes

Where Diegnan sits in the New Jersey State Senate

Diegnan is closer to the center than 12% of the chamber's Democrats.

Dem. medianRep. medianDiegnanMore liberalMore conservative

Closest: Linda Greenstein, Brian Stack, Nick Scutari

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:57 PM ET

With Diegnan’s party

  • Votes with the chamber's Democrats100%
  • Cosponsorships of the other party's bills35%

Black tick: the average of Democrats in the New Jersey State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Diegnan’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 Diegnan 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.

YearRaceResultMargin
2023New Jersey State Senate, District 18WonD+28.0
2021New Jersey State Senate, District 18WonD+21.3
2017New Jersey State Senate, District 18WonD+31.2
2016New Jersey State Senate, District 18LostD+23.5
2015New Jersey General Assembly, District 18WonD+0.3
2013New Jersey General Assembly, District 18WonD+0.9
2011New Jersey General Assembly, District 18WonR+0.2
2009New Jersey General Assembly, District 18WonR+0.3
2007New Jersey General Assembly, District 18WonD+0.4
2005New Jersey General Assembly, District 18WonR+1.7
2003New Jersey General Assembly, District 18WonR+2.9
2001New Jersey General Assembly, District 18WonR+1.9

Source: 99chambers results archive

Seats Diegnan has held

Source: 99chambers results archive

Who Diegnan has run against

  • Neal Shah (R) · 2023 general, won
  • Vihal R. Patel (R) · 2021 general, won
  • Lewis Glogower (R) · 2017 general, won
  • Roger W. Daley (I) · 2016 general, lost
  • Nancy Pinkin (D) · 2015 general, won
  • Nancy Pinkin (D) · 2013 general, won

Source: 99chambers results archive

How we know Diegnan

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET