WASHINGTON — The FBI is investigating Joe Kent, the former head of the National Counterterrorism Center, who resigned Tuesday in protest of the war with Iran, for allegedly leaking classified information, according to four sources familiar with the matter.

The probe, first reported Wednesday by Semafor, predates Kent’s dramatic departure from the Trump administration, though it is not clear when exactly it started or what revelation triggered it.

Kent, 45, had access to the nation’s most guarded secrets, and two sources claimed the FBI has direct evidence of Kent leaking. One said it was to at least two like-minded media figures, another said it was to a newspaper.

A third source said that Kent, who claimed President Trump was manipulated into attacking Iran at the behest of Israel and shielded from dissenting views, was effectively iced out ahead of his Tuesday resignation due to the investigation.

“There was a recognition that he was self-serving, so the fear of putting him on leave or firing him before there was more certainty was that he’d go out and do exactly what he’s doing,” the third source said.

“The White House lost trust in him, and attempts to compartment his work were made, but there was an effort to not embarrass the guy and find a way to transition him. He was shown a level of grace that he clearly didn’t deserve.”

The timing of the investigation’s revelation, however, has raised doubts — with skeptics recalling that War Secretary Pete Hegseth fired three senior aides last year for alleged criminal leaking before they were exonerated by further review. 

“[FBI Director] Kash [Patel] has had personal animosity with Joe for months,” said a different source.

In October, news reports indicated that Kent and Patel were at odds over the former’s attempts to determine whether foreign actors were involved in the September assassination of conservative activist Charlie Kirk.

“This stuff doesn’t automatically go to the FBI unless they find something that’s a smoking gun,” the skeptical source said. “If Joe was under FBI investigation, then why wasn’t he put on leave?”

The two sources who said Kent was caught red-handed didn’t divulge what news nuggets he was suspected of sharing without authorization.

One person told The Post that Kent is suspected of leaking information about Venezuela and Iran and insisted that the bureau has “the f–king receipts,” but did not specify what information may have been leaked.

Another argued the FBI has Kent “dead to rights, leaking highly classified compartmented info.”

The Post’s sources were unaware of any warrant being prepared for Kent’s electronic devices, though one source noted that government server logs are themselves a valuable source of evidence.

Kent’s former superior, national intelligence director Tulsi Gabbard, has vowed repeatedly to catch and punish leakers.

News of the investigation came one day after former White House deputy chief of staff Taylor Budowich alleged on X Tuesday that Kent was “a crazed egomaniac who was often at the center of national security leaks, while rarely (never?) producing any actual work.”

“This isn’t some principled resignation,” Budowich added, “he just wanted to make a splash before getting canned. What a loser.”

In his resignation letter, Kent claimed that Iran “posed no imminent threat to our nation” and argued that Trump launched Operation Epic Fury “due to pressure from Israel and its powerful American lobby.”

Kent, a two-time Republican congressional candidate, expanded on those claims in an interview with podcaster Tucker Carlson released Wednesday night, accusing conservative media personalities — “your Mark Levins, Sean Hannitys, etc.” — of repeating Israeli talking points about Iran enriching uranium to the point of developing nuclear weapons.

“Yet, if you looked in classified intelligence, we didn’t see any of that,” he insisted. “The circle that was around [President Trump] was very, very tight and very small and I think they were on the same sheet of music, and I think a lot of them were getting their information from the ecosystem that I described.”

Kent added that while there was “robust debate and robust discussions” leading up to Trump hitting three Iranian nuclear sites in June 2025, deliberation ahead of Operation Epic Fury was “conducted by just a handful of advisers around the president.”

Trump himself responded to Kent’s departure Tuesday, with the president telling reporters in the Oval Office: “I always thought he was a nice guy, but I always thought he was weak on security, very weak on security.”

“When I read the statement, I realized that it’s a good thing that he’s out, because he said that Iran was not a threat,” the president added. “Iran was a threat. Every country realized what a threat Iran was.”

The president added: “When somebody is working with us that says they didn’t think Iran was a threat, we don’t want those people … They’re not smart people, or they’re not savvy people. Iran was a tremendous threat.”

White House press secretary Karoline Leavitt also accused Kent of peddling “false claims” in his resignation letter, noting that Trump had deployed “his top negotiators” in an effort to avoid war, but “had strong and compelling evidence that Iran was going to attack the United States first.”

She also blasted “the absurd allegation that President Trump made this decision based on the influence of others, even foreign countries,” calling it “both insulting and laughable.”

The investigation of Kent is not the first time the Trump administration has scrutinized one of its former employees for improper handling of national security information.

This past October, a federal grand jury indicted former national security adviser John Bolton on 18 counts of illegally hoarding or sending sensitive information — alleging that the longtime Iran hawk transmitted classified national security documents through a personal AOL email account and knowingly sent secret materials to outside contacts while serving in the first Trump administration.

Prosecutors allege that Bolton, now 77, used email and messaging apps to send documents classified as high as “top secret” that revealed intelligence about future US attacks, foreign adversaries, and international relations.

The former US ambassador to the United Nations also kept diary-like notes of his daily activities and assessments, more than 1,000 pages of which he shared with two relatives — believed to be his wife and daughter — who did not have security clearances and were not authorized to see the information Bolton shared.

The case against Bolton is pending in Greenbelt, Md. federal court.

Additional reporting by Caitlin Doornbos and Emily Goodin