The union dropped its support of Kellner due to allegations of sexual misconduct.
Johnson has helped the tenants in their struggles against landlord Joseph Chetrit, tenants said.
Christine Quinn got her political start at the Chelsea Reform Democratic Club.
Johnson is facing Yetta Kurland and Alexander Meadows in the upcoming primary.
Council members are considering delaying endorsements until after budget season to prevent retribution.
Kellner got a thumb's up from City Council Member Jessica Lappin and Congresswoman Carolyn B. Maloney.
Scarlett Johansson once fumed at rumors that Scott Stringer would drop his mayoral bid. And now he is.
Despite warnings of a "nuclear" political race war, many Hispanic leaders are siding with Rangel.
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