DemocratIn office since Nov 2002

Jon Cardin

Maryland State Delegate, District 11B since 2002. Ran in 5 elections between 2002 and 2022, winning 5. Ran for re-election in 2026; the count goes on.

Maryland State Delegate, District 11BBorn 1970

Official website Wikipedia

In office: 24 yrs; Since 2002
Bills became law: 39; 96 sponsored, 2025–2026 session
Votes missed: 5.6%; Chamber median 2.8%
With party: 100%; On votes splitting the parties
Last margin: +0.9; Won 2022
Elections: 6; 2002–2026

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

Committees

As of 2026-10.

Judiciary

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

Legislation

2025–2026 session · 96 sponsored · 39 became law

BillIntroCmteHouseSenateLaw

HB 634 Police Training - Autism and Dementia (LEAD Act of 2026)
Autism Spectrum · Became law May 2026

HB 388 Baltimore County Public Library - Collective Bargaining - Supervisory Employees
Baltimore County · Became law May 2026

HB 842 Property Tax Credit - Surviving Spouse of Military Service Member
Applicants and Applications · Became law May 2026

HB 1326 Child Abuse and Neglect - Disclosure of Reports and Records
Child Abuse and Neglect · Became law May 2026

HB 216 Criminal Law - Benefits Exploitation
Crimes and Punishments · Became law May 2026

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

Voting record

2025–2026 session · placement by roll-call votes

Where Cardin sits in the Maryland House of Delegates

Cardin is closer to the center than 81% of the chamber's Democrats.

Closest: Mike Rogers, Andrea Harrison, Debra Davis

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:52 PM ET

With Cardin’s party

Votes with the chamber's Democrats100%

Black tick: the average of Democrats in the Maryland House of Delegates.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

Date	Bill	Cardin	Dem. majority	Rep. majority	Result
Apr 2, 2026	HB 191: Consumer Protection - Retail Transactions for Essential Consumer Goods - Cash Payments	Yes	Yes	No	Passed 99–28
Apr 2, 2026	SB 286: Public Safety - Elevator Inspection Certificates - Searchable Database	Yes	Yes	No	Passed 113–21
Apr 2, 2026	SB 249: Tobacco Product Licensees - Additional Licensure for Electronic Smoking Devices	Yes	Yes	No	Passed 106–30
Apr 2, 2026	HB 1109: Public Health Reform Act	Not voting	Yes	No	Passed 95–18
Apr 2, 2026	SB 290: Baltimore City - Ordinance Enforcement - Fines and Penalties	Yes	Yes	No	Passed 112–24

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

Career

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

20022004200620082010201220142016201820202022202420262028Maryland House of Delegates, District 11Maryland House of Delegates, District 11Maryland House of Delegates, District 11B

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	Maryland Delegate District 11B	Counting	—	—	—
2022	Maryland House of Delegates, HD-11B	Won	D+0.9	D+34.8	−33.9
2018	Maryland House of Delegates, District 11	Won	D+1.0	—	—
2010	Maryland House of Delegates, District 11	Won	D+3.1	—	—
2006	Maryland House of Delegates, District 11	Won	D+1.2	—	—
2002	Maryland House of Delegates, District 11	Won	R+0.8	—	—