Mamdani guru under fire for alleged threat in Graham Platner sex scandal is prolific operative in lefty campaigns
Morris Katz, a campaign strategist for Mayor Zohran Mamdani, is facing criticism for allegedly threatening a whistleblower in a sex scandal involving Senate candidate Graham Platner. Katz has been involved in various leftist campaigns, including those of Claire Valdez and Brad Lander. The controversy has raised questions about Katz's tactics and the impact on Platner's campaign against GOP Senator Susan Collins.
- ▪Morris Katz is accused of pressuring a former staffer to deny allegations against Graham Platner.
- ▪Katz has been instrumental in several leftist congressional campaigns this election cycle.
- ▪The controversy surrounding Katz has tarnished his reputation and raised concerns about campaign ethics.
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Metro Mamdani guru under fire for alleged threat in Graham Platner sex scandal is prolific operative in lefty campaigns By Craig McCarthy, Carl Campanile and David Propper Published June 1, 2026, 6:00 p.m. ET See more of our coverage in your search results. Add The New York Post on Google Mayor Zohran Mamdani’s campaign guru — now facing heat for allegedly threatening a whistleblowing ex-staffer to US Senate hopeful Graham Platner — has his hands in a series of other congressional bids by far-left candidates. Wunderkind Morris Katz was ripped for his alleged dirty tactics following a report in the Bangor Daily News Sunday that he tried to browbeat former Platner campaign staffer Genevieve McDonald into denying that the married oyster farmer sexted with multiple women.
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