Less than 24 hours after throngs of ecstatic supporters poured into Manhattan for his history-making inauguration, Zohran Mamdani began his first full day of work with a routine familiar to many New Yorkers: trudging to the subway from a cramped apartment.

Bundled against the frigid temperature and seemingly fighting off a cold, he set out Friday morning from the one-bedroom apartment in Queens that he shares with his wife. But unlike most commuters, Mamdani’s trip was documented by a photo and video crew, and periodically interrupted by neighbors wishing him luck.

The 34-year-old democratic socialist, whose victory was hailed as a watershed moment for the progressive movement, has now begun the task of running the nation’s largest city: signing orders, announcing appointments, facing questions from the press — and answering for some of the actions he took in his first hours.

But first, the symbolism-laden day one commute.

Flanked by security guards and a small clutch of aides on a Manhattan-bound train, he agreed to several selfies with wide-eyed riders, then moved to a corner seat of the train to review his briefing materials.