New York City Public Advocate
The office of New York City Public Advocate (formerly President of the City Council) is a citywide elected position in New York City, which is first in line to succeed the mayor. The office serves as a direct link between the electorate and city government, effectively acting as an ombudsman, or watchdog, for New Yorkers.
Source: Wikipedia — New York City Public Advocate (CC BY-SA 4.0)