The mayor and comptroller have engaged in
bitter public relations battles going back to their first year in office — giving rise to rumors that Stringer will challenge de Blasio in this September's Democratic primary instead of running for re-election.
Mr. de Blasio was locked in a
bitter battle with Uber, pitting some progressives against a company that enlisted veterans of the Obama, Bloomberg and Cuomo administrations to wage an effective
public relations war against City Hall.