The Bloomberg administration is moving to have a federal court's ruling against stop-and-frisk repealed.
The city filed a motion, saying Judge Shira Scheindlin had a "pattern of tainted decisions" that "unfairly and improperly cloud the public's perception of the NYPD."
Scheindlin is appealing the decision to have her removed from the case.
Her attorney slammed the city for going after her character and not the decision, which found that the police practice was discriminatory.
A city official told NY1 that the city did not coordinate its legal strategy with Mayor-elect Bill de Blasio and his staff.
De Blasio has promised to withdraw the city's appeal when he takes office.
If he does, the court-ordered reforms would likely go into effect.