The post misspells Mamdani's name as "Mumdumi" and has garnered and 20 million views as of Monday evening. Musk, who previously called Mamdani a "charismatic swindler" on The Joe Rogan Experience, has been vocal against the DSA-aligned assemblyman, criticizing his progressive policies on policing, housing, and Israel.
Musk's endorsement aligns him with a billionaire coalition opposing Mamdani, including Mike Bloomberg, Airbnb co-founder Joe Gebbia, and hedge fund manager Bill Ackman. It also echoes President Trump's Sunday signal of support for Cuomo over Mamdani, whom Trump labeled a potential "total disaster" in a 60 Minutes interview.
Cuomo, polling second at ~28% behind Mamdani's ~43%, has gained momentum from incumbent Mayor Eric Adams' endorsement after Adams dropped out. Sliwa trails at ~8%, and Musk's jab at him amplifies calls for Republicans to consolidate anti-Mamdani votes behind Cuomo.
Mamdani's campaign seized on the post, with one supporter tweeting: "Thanks for the last-minute help to Mamdani’s campaign."
Cuomo's team did not immediately comment, but the endorsement could sway undecided voters in a race where early voting hit a record 735,000 ballots.