A high-profile Zohran Mamdani appointee resigned Thursday after newly unearthed posts revealed a series of antisemitic comments online — including rants about “money hungry Jews” and defunding NYPD “piggies.” The short-lived appointment fell apart once the Anti-Defamation League of New York and New Jersey demanded answers Thursday from Mayor-elect Mamdani’s team about whether its members knew about Catherine Almonte Da Costa’s past antisemitic posts on X, formerly known as Twitter. Da Costa, whom Mamdani tapped on Wednesday as the city’s next director of appointments, had several vile stereotype-laden posts from 2011 and 2012, the ADL revealed in a post on...