Calla Walsh

Early life and education Calla Mairead Walsh was born on June 9, 2004, and was raised in Cambridge, Massachusetts. and the private, all-girls college preparatory day school Winsor School. She then enrolled as an undergraduate at McGill University in Montreal, Canada, later dropping out. The New York Times noted that Walsh was personally responsible for digging through old Twitter posts to find material to attack Democratic candidates she found insufficiently left-wing.

In August 2021, Walsh was elected the youngest delegate at the Democratic Socialists of America (DSA) national convention. That same month, Walsh wrote an article for Teen Vogue in which she advocated for the mobilization of Gen Z within the DSA to build a socialist future, inspired by figures such as Bernie Sanders and Angela Davis, whose activism she claimed shaped her political outlook. Walsh argued that capitalism was the root cause of economic injustice and ecological collapse.

By December 2021, Walsh had quit the DSA over their support for Jamaal Bowman, whom Walsh denounced as a "Zionist". That same month, Walsh wrote an article in Mondoweiss that criticized Markey's response to the Sheikh Jarrah controversy, highlighting his framing of the Israeli–Palestinian conflict as a "both-sides" issue rather than as a settlers vs. natives issue. Walsh argued that the youth-driven "stan politics" supporting Markey during his 2020 campaign hindered accountability and limited pressure for policy changes. She argued that Markey "owed" her for her support and pressured him to take a harder stance on Israel. In response, Markey issued a sterner statement on Israel. Walsh was dissatisfied with it, and declared she was giving up on electoral politics.

Circa late 2022, Walsh was co-chair of the National Network on Cuba, which she described as "a coalition of organizations across the United States described as fighting to end the U.S. war on Cuba".

She also joined the board of Massachusetts Peace Action and served as office manager and social media contributor in the group's campaigns, particularly its international solidarity efforts.

Allegations against Patrick Horan In December 2022, Walsh alleged in a lengthy, since-deleted post on Twitter that she had been in an exploitative relationship with Patrick Horan, a 27-year-old activist she met while working on a 2020 Massachusetts state representative campaign. Chambers has said the two first met in 2022 at a conference on Cuba, and has described his family background as comparable to Walsh's, noting that his grandmother worked as a scientist at the Massachusetts Institute of Technology. The demonstration, part of a broader campaign by Palestine Action US, involved the use of smoke bombs and graffiti targeting the Israeli-owned defense firm. Related to the Cambridge actions, Walsh received three felony vandalism charges and one disorderly conduct charge, later dismissed in July 2025.

On November 20, 2023, Walsh and others escalated the campaign by occupying the roof of Elbit's Merrimack, New Hampshire facility. During the action, protesters allegedly broke windows, spray-painted slogans including "Free Gaza", and lit smoke flares. Before reporting to jail, Walsh and one of her co-defendants got matching tattoos of New Hampshire's state motto, "Live Free or Die"; at their sentencing hearing, Walsh shouted "Free Palestine" in the courtroom. During at least one of her trips to Iran, Walsh appeared in videos filmed at a facility operated by the Islamic Revolutionary Guard Corps, standing in front of military equipment. Later in 2021, she identified as a democratic socialist and a member of the Democratic Socialists of America. In 2023, she described herself as a communist and anti-imperialist. In a 2025 interview with the Iranian state broadcaster PressTV, Walsh said her political convictions had always been more radical than what could be expressed through electoral campaigns, and characterized her earlier campaign work as simply the avenues that had been available to her at the time to pursue change. In a 2025 interview on Free Palestine TV following the fatal shooting of two Israeli embassy staff members in Washington, D.C., for which Rodriguez was arrested, Walsh suggested that more people should have carried out similar attacks.

In February and March 2026, following the 2026 Iran war, Walsh wrote a series of posts on X (Twitter) calling for the use of global violence against Israeli and American officials. After a U.S.-Israeli strike killed Iran's supreme leader that February, Walsh posted a tribute expressing hope that a global uprising would avenge his death, closing the post with a religious phrase associated with mourning in Islamic tradition.

Following an attack on a synagogue in West Bloomfield Township, Michigan, Walsh asked "Why should zionists feel safe anywhere...?" on X. The attacker, who rammed an explosives-laden vehicle into the building, was killed and no one else was harmed, although about 100 children were reportedly at the synagogue's school that day. She has also publicly called for the execution of Lebanese people who collaborate with Israeli soldiers.