Mayor-elect Zohran Mamdani is overhauling his hiring process after an appointee, Catherine Almonte Da Costa, resigned due to antisemitic social media posts from over a decade ago. Mamdani stated he was unaware of the posts before her appointment and would not have hired her had he known. In response, his transition team will bring in an outside legal firm to help vet potential hires and review those already selected, especially for top positions. The incident comes as Mamdani, who will soon become the city's first Muslim mayor, continues efforts to strengthen relationships with Jewish New Yorkers amid scrutiny over his views on Israel. Da Costa expressed deep regret for her past statements, while community leaders and colleagues weighed in on the controversy and Mamdani's commitment to the city's Jewish residents.