A deepening atmosphere of fear and suspicion is gripping the Pentagon as defence officials brace for potential polygraph tests, a drastic measure reportedly aimed at identifying leaks of sensitive information to the media — not among career civil servants, but within the ranks of President Trump’s political appointees.
A source within the U.S. Department of Defense described to Times UK the current mood in the Pentagon as one of “Pandora’s box uncertainty,” following a wave of abrupt departures that has left the office of Defence Secretary Pete Hegseth in a state of upheaval. The polygraph warnings, coupled with invasive inquiries into officials’ phones and online activities, have created an environment “more suited to an intelligence agency under siege,” the source added.
This climate of mistrust comes after the dismissal of three senior aides — Dan Caldwell, Darin Selnick, and Colin Carroll — who were accused of leaking classified material, along with the exit of two other high-ranking civilian officials, including Joe Kasper, Hegseth’s chief of staff. In the wake of these changes, insiders suggest the Pentagon’s senior leadership is in “disarray,” with concerns mounting over Hegseth’s ability to maintain order.
Ironically, Hegseth himself is under investigation. The Pentagon’s inspector general is probing his participation in two encrypted Signal chat groups that discussed upcoming military strikes on Houthi rebels in Yemen. One of these groups included his wife, Jennifer Rauchet — a former Fox News producer — his brother, and his personal lawyer, raising serious questions about the handling of potentially sensitive information.
Sean Parnell, a Pentagon spokesman, insisted on social media that “no classified information” was exchanged in the Signal chats. But the investigation has only intensified scrutiny of Hegseth’s leadership, which some within the building now characterize as erratic and politically charged.
In remarks made during the White House Easter Egg Roll, President Trump dismissed reports of dysfunction, praising Hegseth’s “great job” and suggesting critics were merely “disgruntled employees.” However, the President’s optimism sharply contrasts with growing concern from former insiders.
John Ullyot, who was appointed as the Pentagon’s chief spokesperson by Hegseth but was forced out last week, took the unusual step of publicly criticizing his former boss in Politico. He cited “total chaos” within the department and accused Hegseth’s office of issuing “falsehoods” about the officials who were sacked for allegedly leaking information, including plans to deploy a second aircraft carrier to the Middle East.
The trigger for Ullyot’s own dismissal was the removal of Jackie Robinson’s military service record from the Pentagon’s website — a controversial move ordered under a broader Trump directive to roll back diversity and inclusion initiatives. The record was later restored after public outcry, but the damage to internal morale was done.
With lie detector tests now looming, a growing number of officials fear that the Pentagon may emulate tactics seen in the Department of Homeland Security, where phones have reportedly been seized and scrutinized for political disloyalty. One senior defence source told Times UK that the spectre of forced polygraphs was “not about rooting out deep-state resistance” but was instead “an effort to control the narrative by eliminating internal dissent.”
The sacked officials — Caldwell, Selnick, and Carroll — have denied any wrongdoing and claimed on social media they were “slandered.” Legal experts and former Pentagon staffers warn that the administration’s apparent fixation on loyalty may ultimately jeopardize operational integrity.
“This is a strange and baffling purge,” Ullyot wrote. “The dysfunction is now a major distraction for the president, who deserves better from his senior leadership.”
As whispers of more firings grow louder, and investigations deepen, many within the Pentagon are left wondering whether this political storm is just the beginning — and whether Hegseth’s days at the helm are numbered.
