Zohran Mamdani, the Democratic nominee, has vowed to strictly enforce the measure, Local Law 97, which calls for potentially expensive upgrades to buildings to curb greenhouse emissions.

Former Gov. Andrew Cuomo is expected to announce an independent run for NYC mayor after losing the primary to democratic socialist Zohran Mamdani, joining incumbent Eric Adams

Sources tell CBS News New York former Gov. Andrew Cuomo plans to stay in the race for New York City mayor as an independent candidate. But as CBS News New York's Natalie Duddridge reports, Cuomo is keeping a close eye on polling numbers and has a proposal for his challengers.