The JFK assassination files prove that the 'deep state' is real and not just a conspiracy theory pushed by President Trump and others, a famed journalist says.
Glenn Greenwald highlighted a warning about the CIA's operations issued by President Kennedy's top adviser in 1961 which appears in the newly released dossier.
In a 15 page memo, Arthur Schlesinger called for the intelligence agency to be disbanded, referring to it as a 'state within a state'.
'No one knows how many potential problems for US foreign policy — and how much potential friction with friendly states — are being created at this moment by CIA clandestine intelligence operation,' Schlesinger wrote.
The term 'deep state' refers to the idea that there is a shadowy group of influential people, typically embedded within official agencies, who are manipulating government policy.
It has been pushed by the likes of President Donald Trump, who previously laid out a 10-step plan to 'dismantle the deep state'.
Sceptics have dismissed the idea as paranoid fantasy, but Greenwald, who has a track record of breaking big stories, pointed to Schlesinger's memo as evidence of the concept.
'Liberals spent years screeching that anyone talking about 'the Deep State' was spewing fringe conspiracy theories, as if Sean Hannity invented the term,' he wrote, referencing the conservative Fox newscaster.
The JFK assassination files have proven that a 'conspiracy theory' that the so-called 'deep state' exists is true, a journalist has claimed. (Pictured: First Lady Jacqueline Kennedy leans over dying President as a Secret Service man climbs over their car on November 22, 1969)
Trump announced the release Monday while visiting the John F. Kennedy Center for the Performing Arts in Washington, saying his administration would be releasing 80,000 pages
President John F. Kennedy and First Lady Jacqueline Kennedy are driven through Dallas on November 22 1963, shortly before his assassination
'Meanwhile, JFK's top adviser -- a year after Eisenhower's 1960 warning -- warned the CIA had become "a state within a state".'
The revelation will no doubt refuel JFK assassination conspiracy theorists, who have long posited that the CIA either orchestrated the president's murder or turned a blind eye after becoming aware he was considering disbanding the agency.
More than 63,000 pages of records related to the 1963 assassination of President Kennedy were released Tuesday following an order by Trump.
The U.S. National Archives and Records Administration posted to its website roughly 2,200 files containing the documents.
The vast majority of the National Archives' collection of over six million pages of records, photographs, motion pictures, sound recordings and artifacts related to the assassination have previously been released.
Trump announced the release Monday while visiting the John F. Kennedy Center for the Performing Arts in Washington, saying his administration would be releasing about 80,000 pages.
'We have a tremendous amount of paper. You've got a lot of reading,' Trump said.
Ex-marine Lee Harvey Oswald is shown after his arrest here on November 22, 1969. He received a cut on his forehead and blackened left eye in scuffle with officers who arrested him. Oswald, an avowed Marxist, was charged with the murder of President John F. Kennedy
The Dallas Police Department mug shots of Lee Harvey Oswald following his arrest over the JFK assassination. Oswald claimed he was a 'patsy'.
Kennedy, the 35th President of the United States, was assassinated on November 22, 1969.
He arrived in Dallas with first lady Jacqueline Kennedy to cheering crowds that day with a reelection campaign on the horizon the following year.
But as the motorcade was finishing its parade route downtown, shots rang out from the Texas School Book Depository building.
Police arrested 24-year-old Lee Harvey Oswald, who had positioned himself from a sniper’s perch on the sixth floor.
Two days later, nightclub owner Jack Ruby fatally shot Oswald during a jail transfer.
A year after the assassination, the Warren Commission, which President Lyndon B. Johnson established to investigate, concluded that Oswald acted alone and that there was no evidence of a conspiracy.
Nonetheless, countless conspiracy theories about the assassination have proliferated over the past few decades.
They include claims of a second shooter on a grassy knoll the president drove past, as well as the aforementioned claim that the CIA was involved.