The letter was sent to Bove on February 2 by attorneys who wrote that the move to terminate the contracts of FBI employees and Department of Justice prosecutors, with some being let go as soon as February 3, appeared to "be in violation of the due process rights of those to be unlawfully discharged."

As fear of mass firings swirls through the FBI, acting Director Brian Driscoll, the head of the bureau's New York field office, and an agents group reassured staffers and pushed back against Trump administration efforts to force out FBI officials.

Former New Jersey Gov. Chris Christie (R) said Sunday that President Trump’s purge of the FBI is “incredibly dangerous” to national security. In an interview on ABC News’s “This Week,” Christie described the lengthy process of onboarding FBI agents and said the country cannot afford to lose good agents.