John Cronin
Photo: Massachusetts General Court, Public domain
DemocratIn office since Nov 2020

John Cronin

Massachusetts State Senator, District D10 since 2020. Ran in 3 elections between 2020 and 2024, winning 3. Re-elected in 2026. Next on the ballot in 2028.

Massachusetts State Senator, District D10

In office
6 yrs
Since 2020
Bills became law
0
74 sponsored, 2025–2026 session
Last margin
+8.6
Won 2026
Next election
2028
Nov 7, 2028
Elections
5
2020–2026
Won
5
generals, primaries and specials

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

Committees

As of 2026-10.

  • Bonding, Capital Expenditures and State Assets · chair
  • Health Care Financing · vice chair
  • Public Safety and Homeland Security · chair
  • Consumer Protection and Professional Licensure
  • Economic Development and Emerging Technologies
  • Telecommunications, Utilities and Energy
  • Ways and Means
  • Ways and Means

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

Legislation

2025–2026 session · 74 sponsored · 0 became law

No bills in this list for the 2025–2026 session.

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

Career

Offices held, and every time Cronin 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+/−
2026Massachusetts State Senate, SD-D10WonD+8.6D+15.8−7.2
2026Massachusetts State Senate, SD-D10WonD+8.6D+15.8−7.2
2024Massachusetts State Senate, SD-D10WonD+18.2D+15.8+2.4
2022Massachusetts State Senate, SD-D10WonD+20.5D+22.6−2.1
2020Massachusetts State Senate, District 9WonD+2.0——

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

Campaign money, 2025–26

Raised
$108.8K
Spent
$110.3K
Cash
$99.5K

Source: Massachusetts Office of Campaign and Political Finance filings through Oct 26, 2026Updated Oct 31, 2026, 6:19 PM ET

Campaign committees

Open committees can still raise and spend money.

Cronin Committee
State
Active

Source: Massachusetts Office of Campaign and Political Finance filings through Oct 26, 2026Updated Oct 31, 2026, 6:19 PM ET

Seats Cronin has held

Source: 99chambers results archive

Who Cronin has run against

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

How we know Cronin

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:51 PM ET