Newly elected Mayor of New York, Bill de Blasio is sworn in by former President Bill Clinton
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Bill De Blasio sworn in as mayor of New York City

The first Democratic mayor of New York City in more than 20 years has taken his oath of office at City Hall where he pledged to pursue a liberal agenda.

Bill de Blasio, who succeeds billionaire Michael Bloomberg, was inaugurated at a ceremony presided over by former US President Bill Clinton.

Philippa Thomas reports.

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