5 takeaways from Mamdani's start as NYC mayor

New York City Mayor Zohran Mamdani (D) proclaimed a "new era" as he took the helm of the country's largest city on New Year's Day.

Mamdani, the 34-year-old democratic socialist whose star rocketed last year, was publicly sworn in on the steps of City Hall, where he addressed a crowd of thousands in a sweeping inauguration speech attended by top progressive allies...