Hedge fund manager Ken Griffin, founder of Citadel, says he is committing further to Miami after New York City Mayor Zohran Mamdani highlights Griffin in support of proposals to increase taxes on second homes. In an interview at the Milken Global Conference, Griffin says Mamdani’s comments have reinforced what he describes as the firm’s “bet in Miami,” adding that Citadel revised plans to enlarge an office project there. Bloomberg reports Griffin also declined to confirm whether Citadel will complete a separate Manhattan tower project at 350 Park Avenue, noting that internal discussion continues. The reports tie Mamdani’s public references—including a discussion of Griffin’s reported Central Park South penthouse—to Griffin’s decision to adjust Citadel’s Miami building plans. One account also says Griffin watched Mamdani’s video multiple times and criticized it as “creepy and weird,” while recalling his earlier move from Chicago. A Mamdani spokesperson says the mayor supports entrepreneurs but argues New York’s tax structure should be reformed so wealthy residents contribute more. Overall, the coverage centers on Griffin’s stated investment direction and Mamdani’s efforts to change second-home taxation in New York.