Mayor Zohran Mamdani speaks to nurses from Mount Sinai West striking outside the hospital on 20 January 2026 in New York City. ichael M Santiago/ Mayor Zohran Mamdani speaks to nurses from Mount Sinai West striking outside the hospital on 20 January 2026 in New York City. ichael M Santiago/Getty ImagesNew York nurses continue to strike in frigid weather as Mamdani shows supportNew York mayor was joined by Senator Bernie Sanders at a Tuesday rally with nurses as strike entered second weekNew York City may be experiencing some of its coldest weather of the winter, with sub-zero temperatures biting fingers and nipping cheeks, but that hasn’t prevented thousands of nurses from taking to the picket line for what is the largest nurses strike in the city’s history. Almost 15,000 nurses who work for three separate hospital systems have been on strike since 12 January, holding out for increased staffing, better safety in hospitals, and improved healthcare benefits.