2026 contest

Massachusetts 4th District

This page currently shows current seat context and active FEC filings. It does not yet claim ballot certification, party nomination, or certified results.

Office

U.S. House

Current officeholder

Auchincloss, Jake

General election

November 3, 2026

Live FEC filings

7

FEC registeredBallot certifiedParty nomineeWon electionSeated

Candidates listed here are active FEC filings for this federal seat. Ballot certification, nominee status, and state election-office validation are not loaded yet.

Candidates

7 active FEC filings

JAKE AUCHINCLOSSFEC registered

DEMOCRATIC PARTY · Incumbent

First FEC filing: October 3, 2019 · Last filing: November 14, 2024

Has raised fundsFEC ↗
THOMAS PHD STALCUPFEC registered

REPUBLICAN PARTY · Challenger

First FEC filing: March 28, 2026 · Last filing: March 28, 2026

Has raised fundsFEC ↗
JASON POULOSFEC registered

DEMOCRATIC PARTY · Challenger

First FEC filing: February 2, 2026 · Last filing: February 2, 2026

Has raised fundsFEC ↗
IHSSANE LECKEYFEC registered

DEMOCRATIC PARTY · Challenger

First FEC filing: January 28, 2026 · Last filing: January 28, 2026

Has raised fundsFEC ↗

DEMOCRATIC PARTY · Challenger

First FEC filing: December 15, 2025 · Last filing: December 15, 2025

Has raised fundsFEC ↗
MATTHEW PAUL MR. COOKFEC registered

INDEPENDENT · Challenger

First FEC filing: December 8, 2025 · Last filing: December 8, 2025

No receipts reported yetFEC ↗
STEVEN MICHAEL CHASSEFEC registered

INDEPENDENT · Challenger

First FEC filing: April 1, 2025 · Last filing: April 1, 2025

No receipts reported yetFEC ↗

Sources

Seat structure source: Official House roster

Candidate filing source: Federal Election Commission candidate filings and candidate data APIs.