Rep. Mike Connolly's re-election campaign is proud to be endorsed by the following organizations and elected officials, with new endorsements being announced daily:
- Reproductive Equity Now
- Progressive Massachusetts
- Progressive Democrats of Massachusetts
- Planned Parenthood Advocacy Fund of Massachusetts
- Massachusetts AFL-CIO
- MassEquality
- Somerville YIMBY
- Cambridge Bike Safety
- Abundant Housing Massachusetts
- Sierra Club Massachusetts
- Massachusetts Nurses Association
- 350 Mass Action
- National Association of Social Workers
- Environmental League of Massachusetts Action Fund
- Our Revolution (national)
- Mass Peace Action
- Somerville For Palestine
- Our Revolution Cambridge
- IAM Local 257 Machinists Union
- Service Employees International Union (SEIU) state council
- Massachusetts Organization of State Engineers and Scientists
- Mass Alliance
- SEIU 1199 (representing healthcare workers)
- SEIU 32BJ (which represents MIT custodians, et al.)
- Voters of Tomorrow — Boston (a Gen-Z led progressive group)
- Massachusetts Teachers Association
- the Boston Teachers Union
- Massachusetts Voters for Animals
- SEIU Local 509
- IfNotNow Boston
- Transportation Division of the International Association of Sheet Metal, Air, Rail and Transportation Workers
- United Auto Workers Region 9A MA CAP
- Our Revolution Massachusetts
- State Senators Lydia Edwards, Sal DiDomenico, and Jamie Eldridge
- State RepresentativesJay Livingstone and Steve Owens
- Somerville Mayor Jake Wilson
- Cambridge City Councilors Ayah Al-Zubi, Jivan Sobrinho-Wheeler, Cathie Zusy, and Patty Nolan
- Somerville School Committee Chair Emily Ackman
- Cambridge School Committee Chair David Weinstein