Comrade Mamdani Attacks Ken Griffin For Owning Property in New York City

Non-residents who spend millions of dollars on NYC apartments help drive NYC’s economy. Most of the profit in condominium development is in the penthouses. The Ken Griffins of the world make NYC high end development viable, driving high-paying construction, brokerage, legal,… https://t.co/7Iv6UhGzdf

— Bill Ackman (@BillAckman) April 16, 2026