New York's socialist mayor, Zohran Mamdani, is reportedly having a significant impact on the city's politics. The so-called "Mamdani effect" may be influencing political developments beyond New York, as evidenced by its mention in the context of a Colorado primary. The mayor's policies, including a proposed property tax, are being met with both criticism and defense, with some questioning their potential effectiveness and others assessing their potential impact on the city's residents and US-Israel relations.