Closing Critical Loopholes. Mamdani discovered and ended a decade-old practice of DOC sharing immigrant detainee information with ICE that served no legal purpose, showing proactive leadership in protecting sanctuary policies.

Mayor Zohran Mamdani adopted 24 policy changes to strengthen NYC's sanctuary laws after an audit revealed the Department of Correction had been sending daily reports to ICE about immigrant detainees since 2015.
The audit was ordered in February following incidents where ICE pushed past shelter staff and misrepresented themselves as FDNY officers. ICE arrests in NYC increased 71% under Trump's second term.