Zohran Mamdani is the 33-year-old state lawmaker running for New York mayor who recently swept the city's Democratic primary. The self-declared "democratic socialist" came from behind by campaigning hard on affordability – or lack thereof – in America's most expensive city.

Zohran Mamdani, 33, has won the Democratic candidacy to be mayor of New York. That has energised his supporters and enemies alike – and terrified the rich