Defending Our Constitution

Denouncing Tyranny

A Nonpartisan Nonviolent Movement

Events

Featured
All Over Massachusetts
No Kings in Our Community
All Over Massachusetts

On July 4, 2025, we call on the people of Massachusetts to embrace the true spirit of Independence Day by celebrating freedom – and spreading the “No Kings” message – on the 249th anniversary of the original “No Kings” day.

All Over Massachusetts
Good Trouble Lives On

Time and details to be announced!

Change Can Start

Right At Your Inbox

Get Official Mass 50501 Merch!

No Kings but Yaaas Queen t-shirt
America Has No Kings t-shirt
No Kings But Drag Kings t-shirt

All proceeds go to funding events, programs, trainings, and uplifting our Massachusetts communities.

Past Events

Learn more about the local action Mass 50501 takes in Massachusetts!

Events
Boston May Day
May 1
Boston Common
Boston May Day
Boston Common

On May Day, labor and activists across the country gathered in solidarity to continue the fight to defend our rights, our values, and our democracy.

Boston Common
Hands Off!
Apr 5
Boston Common
Hands Off!
Boston Common

On Saturday, April 5th 100,000 people came together in Boston to send a clear message to our government: Hands Off Our Democracy!

Boston Common

Get Involved

There are many ways to help and join Mass 50501. Consider attending an event, subscribing to our newsletter, or volunteering. As we are a grassroots organization, we also greatly appreciate donations.

New Blog Post!

Featured
Mass 50501
What does the Trump v. Casa decision actually do?
Mass 50501

What this decision is: The Supreme Court of the United States (SCOTUS) has made it more difficult to stop the Trump administration from committing illegal acts.

What this decision is not: SCOTUS has not eliminated birthright citizenship.

What you can do: Read our guide to this disastrous decision for full details and three ways you can help in this fight.

Read More →
Mass 50501