New York City Mayor Zohran Mamdani is facing renewed criticism after a 2023 social media post he wrote about the 9/11 attacks resurfaced online, in which he mourned "the hundreds of thousands who died in the wars that followed" without naming those responsible for the attacks. The backlash has intensified ahead of the 25th anniversary of 9/11, with several victims' families and prominent commentators demanding he stay away from the Ground Zero commemoration, arguing his framing of the tragedy is inappropriate for the occasion.

The controversy follows separate criticism of Mamdani for interviewing commentator Hasan Piker, who previously said "America deserved 9/11"; Mamdani initially declined to condemn the remark before later calling it "objectionable and reprehensible". Critics including columnist Marc Thiessen, New York councilwoman Inna Vernikov and Congress members Randy Fine and Nancy Mace have publicly urged him not to attend, while a Change.org petition organised by victims' families has asked organisers to reconsider his participation. Mamdani has said he intends to attend the ceremony alongside Vice President JD Vance and former presidents Biden and Bush; his office has not yet responded to a request for comment.