PHILADELPHIA (AP) — A federal appeals court is set to hear arguments Monday regarding whether Alina Habba, President Donald Trump’s former lawyer, has been unlawfully serving as the top federal prosecutor in New Jersey since earlier this year.

The 3rd Circuit Court of Appeals has scheduled a hearing in Philadelphia over Habba’s appointment, which a lower court judge previously criticized as a result of a 'novel series of legal and personnel moves' that questioned her legitimacy as U.S. Attorney for New Jersey.

In August, the judge indicated that actions taken since her July appointment could be nullified, but put that ruling on hold for an appeal from the U.S. Justice Department.

The Justice Department asserts that Habba is correctly fulfilling her role per a federal statute that allows the first assistant attorney, a position she held since her initial appointment by the Trump administration, to serve as U.S. attorney.

This legal drama echoes similar events in Nevada, where a federal judge disqualified the administration’s U.S. Attorney appointment.

Concerns about Habba’s tenure emerged from high-profile cases where defendants contest the validity of her authority to prosecute. Following her temporary appointment, she expressed intentions to investigate the state's Democratic leadership, a bold stance for a federal prosecutor.

As the situation develops, the appeals court will need to clarify the boundaries and authority associated with political appointments in such pivotal roles.