Business leaders, including Jamie Dimon and potentially Ken Griffin, are reacting to Mamdani's win in the NYC mayoral race. There are differing reports on the nature of these reactions, with some suggesting that Wall Street leaders are not standing up to Mamdani's policies and others indicating that Mamdani is meeting with financial leaders such as Dimon and Goldman's Solomon. Some business leaders, including Dimon, have expressed concerns that Mamdani's tax plans could hurt New York.