Kallos beat Micah Kellner, whose campaign took a hit when sex harassment allegations surfaced in July.
Antonio Reynoso beat Vito Lopez and Stephen Levin kept his spot in office in Tuesday's primary.
Menchaca defeated incumbent Sara Gonzalez for the City Council seat in Red Hook and Sunset Park.
Chin retained her seat in a fight against challenger Jenifer Rajkumar, with a 17-point lead.
Also up for grabs was a seat that will be vacated by Councilman James Gennaro.
Noah Gotbaum said he would be a strong, independent voice in the City Council.
Jobs for New York is canvassing Fort Greene on behalf of City Council candidate Laurie Cumbo.
The Monday night debate often veered into attacks on each other's pasts.
Ben Kallos wants to publish all city contracts online and expand broadband service to low-income tenants.
Devon Page, 22, lit ex-Councilman Eric Gioia's SUV on fire Sunday, cops said.
Workers from Lisa Giovinazzo's staff allegedly yelled at kids who took down her campaign signs.
The union dropped its support of Kellner due to allegations of sexual misconduct.
Lopez has now canceled his first two scheduled appearances at the non-profit he founded.
The proposal, which would allow bigger skyscrapers around Grand Central, now heads to City Planning.
The City Council passed a bill Wednesday night to give rebates on property tax bills to Sandy victims.
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