Mayor Mamdani kicked off a three-day summit in New York City with a warning: the world’s mayors are united, and they are not afraid of anyone who disagrees with them. The Urban 20 (U20) Summit brings together leaders from dozens of cities, and Mamdani used his opening remarks to make the case that local governance is the future of global politics.
The event started Saturday and runs through Tuesday. Most of the day’s activities were closed to the press. Only select media outlets, excluding The Post, were allowed to attend the opening remarks, and the location was not disclosed.
Mamdani’s Opening Remarks
Mamdani spoke about the summit’s focus on practical solutions to rising housing costs, the climate crisis and migration. His remarks were posted on social media, where he framed the gathering as the start of a new era of international cooperation among city leaders.
“As we hold panels, conversations and plenary sessions, my sincere hope is that this conference marks only the beginning of a new era of cooperation and emulation,” he said in his remarks.
He also claimed that attendees share common goals of making cities more affordable, dealing with the climate crisis and fighting right-wingers who demonize and terrorize immigrants. That framing puts the summit squarely in the political center of the mayoral movement, positioning Mamdani and his guests as defenders of progressive urban policy against what he described as anti-immigrant sentiment.
Who Is Attending
The summit brings together 25 mayors and other leaders representing 34 cities worldwide. Los Angeles is co-hosting the event with the Mamdani administration, and LA Deputy Mayor of International Affairs Dilpreet Sidhu, who also addressed the leaders, serves alongside Mamdani as co-chair.
Other confirmed attendees include:
- Pramono Anung, governor of Jakarta, Indonesia
- Mexico City’s Head of Government Clara Brugada
- Helsinki Mayor Daniel Sazanov
- Barcelona Mayor Jaume Collboni
- Rome Mayor Roberto Gualtieri
- Amsterdam Mayor Femke Halsema
The full list of participants has not been released, and several meetings are scheduled to take place at undisclosed locations.
A Schedule Built Around Private Meetings
Mamdani’s public-facing events are few. The schedule lists plans to visit an undisclosed wastewater treatment plant with Sazanov, Collboni and Gualtieri, with approved footage to be made available later. It also includes private meetings with Collboni and Halsema at undisclosed sites.
| Event | Details |
|---|---|
| Opening remarks | Closed to press, undisclosed location |
| Wastewater treatment plant visit | With Sazanov, Collboni and Gualtieri; approved footage later |
| Private meetings | Collboni and Halsema at undisclosed sites |
The secrecy extends to the logistics. Reps for Mamdani did not return messages seeking further details on the event’s arrangements.
What The Press Can See
The limited media access is part of the design. The Post was excluded from the opening remarks, while select outlets were admitted. The location of those remarks was kept secret, and the contents of most of Saturday’s activities remain unknown.
Mamdani’s team issued a press statement outlining the summit’s focus areas. The statement emphasized affordable housing, climate action and migration, which aligns with the goals Mamdani described in his remarks.
The Politics Of A Secret Summit
The secrecy around the event raises questions about transparency. A summit designed to set the global agenda for city leadership deserves scrutiny, especially when it excludes major news outlets from its proceedings.
Mamdani’s framing of the gathering as a coalition against right-wing forces is notable. By positioning himself and his fellow mayors as the defenders of progressive urban policy, he is drawing a line in the sand — one that places him firmly on the left of the political spectrum.
The summit’s stated goals of affordable housing, climate action and migration are uncontroversial in themselves. But the secrecy surrounding the event and the selective media access suggest a strategy that controls the narrative rather than engages with critics.
What Comes Next
The summit continues through Tuesday, and the approved footage from the wastewater treatment plant visit will provide some insight into the event’s operations, but the private meetings with Collboni and Halsema remain opaque.
The summit’s success will be measured in concrete outcomes, not just warm words. Whether the mayors leave New York with actionable plans or simply a shared sense of purpose remains to be seen.
Mamdani has positioned himself at the center of a global conversation about city leadership. The question now is whether that conversation will be open to everyone — or whether it will remain a club with a locked door.
Where the paper stands
The paper backs smaller government and is against agencies writing their own authority, which means it backs mayors acting within their legal limits and is against any office gathering more power than its laws allow, even as it notes the summit’s stated purpose of practical city-led action. The secrecy here is not an argument for or against Mamdani’s policies; it is a separate matter of how he chooses to run his office.
The summit’s goals of affordable housing, climate action and migration are uncontroversial in themselves. The secrecy and selective media access, however, raise questions about transparency — and about whether the gathering is truly a forum for city leaders or a controlled event with a locked door.
The summit continues through Tuesday, and the approved footage from the wastewater treatment plant visit will provide some insight. The private meetings with Collboni and Halsema remain opaque. The paper will continue to follow the event and its outcomes, watching both what the mayors say and how they choose to say it.
Source material: “Mayor Mamdani secretive U20 world summit — pushing his far-left agenda with global elites,” the New York Post.
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