This comes from the Daily News Blog by Celeste Katz.
The entire article can be found here, which includes a 5 minute video by Mayor de Blasio's 19 year old daughter has revealed that she has battled substance abuse, depression, drugs, and alcohol including how she won out over all of them. She begins the video by disclosing she’s battled depression nearly “her
entire adolescence” and that her substance abuse flowed from that
struggle.
Chiara de Blasio attends college in California 3,000 miles away, and sought help here in New York City. In a surprise e-mail the incoming mayor and his wife "As parents, our instinct has been to protect our daughter and privately
help her through a deeply personal struggle," they wrote. The video also was posted on YouTube, under the heading, "Chiara de Blasio tells her story."
For her part, Chiara de Blasio simply encouraged people to watch the short video. “I hope that everybody watches the video," she said. "I think that it speaks for itself."
