NYT: "Michael R. Bloomberg, the city’s billionaire former mayor, gave $3.5 million this week to For Our City, a super PAC trying to stop Zohran Mamdani. That was on top of another $1.5 million Bloomberg gave to a different anti-Mamdani group, and his endorsement of Andrew Cuomo. The former mayor is now unquestionably the single largest donor in the race."
Bloomberg has now spent $5 million against Zohran, making him the single largest donor in the election
