LIVE VIDEO: Bill de Blasio sworn in as New York City mayor

NYC Mayoral Candidate Bill de Blasio Campaigns In Brooklyn
Public Advocate and New York City Mayoral candidate Bill de Blasio speaks to voters at a subway station in Brooklyn on August 16, 2013 in New York City.

LIVE VIDEO — Bill de Blasio becomes New York City’s 109th mayor. Watch his inauguration ceremony live.