President Donald Trump is unsurprisingly facing staunch internal resistance from career bureaucrats and officials in the federal government, but his team is working steadily to bypass or remove those impediments to his policy agenda.

That reportedly includes the now-former head of the FBI's New York Field Office, James Dennehy, who claimed on Monday that he was forced to resign without any explanation for his ouster, according to the New York Post.

Yet, the reason for Dennehy's forced resignation seems clear amid reports that he previously encouraged his fellow FBI agents and officials to "dig in" and resist Trump as well as accusations that his office obstructed Attorney General Pam Bondi's efforts to publicly release all files related to the late convicted pedophile billionaire Jeffrey Epstein.

Dennehy is out

Multiple media outlets and reporters obtained the letter Dennehy sent to his FBI co-workers on Monday to announce his resignation, in which he wrote, "Late Friday, I was informed that I needed to put my retirement papers in today, which I just did. I was not given a reason for this decision."

Dennehy, who'd just been promoted last September by former Director Chris Wray to be the Assistant Director in Charge of the Bureau's New York Field Office, said, "Regardless, I apologize to all of you for not being able to fulfill my commitment to you to serve as ADIC NY for at least two years."

"But as I leave today, I have an immense feeling of pride -- to have represented an office of professionals who will always do the right thing for the right reasons; who will always seek the truth while upholding the rule of law; who will always follow the facts no matter where they lead and be unapologetic about it; who will never bend, break, falter, or quit on your integrity; who will always handle cases and evidence with an overabundance of caution and care for the innocent, the victims, and the process first; and who will always remain independent," he continued.

Dennehy included in his message a "Top 10 List" of things he'll miss about the FBI, and one of those was clearly an unsubtle shot at the Trump administration, as he wrote, "3.  The independence. We will not bend. We will not falter. We will not sacrifice what is right for anything or anyone."

"I've been told many times in my life, 'When you find yourself in a hole, sometimes it's best to quit digging,'" he concluded. "Screw that. I will never stop defending this joint. I'll just do it willingly and proudly from outside the wire."

Defiant attitude toward Trump

According to NBC News, citing multiple anonymous sources within the FBI's New York Field Office, Dennehy was given the choice of resigning voluntarily or being fired by a Monday deadline.

That purported ultimatum came a little more than a month after media reports revealed that Dennehy had seemingly instructed his colleagues in a memo to join him in preparing to "dig in" and resist the Trump administration and its overt efforts to dramatically reform the politically weaponized federal law enforcement agency.

Dennehy's defiant memo was issued in response to an order from an acting superior to provide a list of all FBI agents, employees, and officials who'd worked in any capacity on cases related to the Jan. 6 Capitol riot of 2021, which prompted fears of mass firings or other forms of retribution.

Accused of withholding Epstein files from AG Bondi

Per CNN, Dennehy's departure from the FBI also comes just days after Attorney General Bondi sharply accused his New York office of withholding "thousands" of Epstein files that were supposed to have been declassified and turned over to her office and publicly released in accordance with an order from President Trump.

Bondi, among other administration officials, was deeply embarrassed last week when what was touted as the release of new information about Epstein was quickly revealed to mostly be information that was already public knowledge via prior leaks and court filings.

The AG tersely demanded that all withheld documents be turned over by Friday in a letter to FBI Director Kash Patel that also ordered him to launch an immediate investigation to determine why her initial orders had not been followed by the New York Field Office that was headed by Dennehy.