Yisrael Hasson also condemned the decision to prioritize safeguarding the Prime Minister's son's reputation over national security.
Leiter was Netanyahu's chief of staff at the Finance Ministry in the past and will step into his role on January 10.
The request, which was made several months ago, relates to a commander who worked with the Prime Minister's office.
"There are no words," said Devora Idan, speaking at the protest Thursday. Idan's son Tsachi is held hostage by Hamas, and Tsachi's 18-year-old daughter was murdered on October 7.
Even though Netanyahu is already embroiled in several legal affairs—Cases 1000, 2000, 3000, and 4000—some dreamed this would amount to Case 5000 and would, Watergate-like, force him out of office.
Feldstein was hired by the PMO media team soon after the war began, but his employment status remained unclear.
Recent reports suggested that the individual gained access to sensitive materials without proper clearance.
"The ongoing ambiguity serves as a cover for deliberate and malicious slander against the Prime Minister's Office," Netanyahu's office said.
The state requested dismissal of a petition seeking disclosure of Netanyahu's medical condition, citing irrelevant claims and protocol adherence.
The government is making a mockery of Israeli law and reviving its push for significant changes to the justice system, creating a divide in the country.