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President Donald Trump told reporters on Monday that the release was coming, though he estimated it at about 80,000 pages.

“We have a tremendous amount of paper. You’ve got a lot of reading,� Trump said the John F. Kennedy Center for the Performing Arts in Washington.

There is an intense interest in details related to the assassination, which has spawned countless conspiracy theories.

Here are some things to know:

Trump's order

Shortly after he was sworn into office, the related to the assassination

He directed the national intelligence director and attorney general to develop a plan to release the records. The order also aimed to declassify the remaining federal records related to the 1968 assassinations of Sen. Robert F. Kennedy and the

After signing the order, Trump handed the pen to an aide and directed that it be given to , the Trump administration's He's the nephew of John F. Kennedy and son of Robert F. Kennedy. The younger Kennedy, whose anti-vaccine activism has from much of his family, that a lone gunman was solely responsible for his uncle's assassination.

Nov. 22, 1963

When Air Force One carrying JFK and first lady Jacqueline Kennedy , they were greeted by a clear sky and enthusiastic crowds. With a reelection campaign on the horizon the next year, they went to Texas for a political fence-mending trip.

But as the motorcade was finishing its parade route downtown, shots rang out from the building. Police arrested 24-year-old 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. But that didn't quell a web of alternative theories over the decades.

The JFK files

In the early 1990s, the federal government mandated that all assassination-related documents be housed in a single collection in the ºÃÉ«tv Archives and Records Administration. The collection was required to be barring any exemptions designated by the president.

Trump, who took office for his first term in 2017, had said that he would allow the release of all of the remaining records but ended up holding some back because of what he called the And while files during President Joe Biden’s administration, some remain unseen.

The ºÃÉ«tv Archives says that the vast majority of its collection of over 6 million pages of records, photographs, motion pictures, sound recordings and artifacts related to the assassination have already been released.

Researchers have estimated that 3,000 files or so either in whole or in part. And last month, that it had discovered about 2,400 new records related to the assassination. The agency said then that it was working to transfer the records to the ºÃÉ«tv Archives to be included in the declassification process.

Around 500 documents, including tax returns, were not subject to the 2017 disclosure requirement.

What's been learned

Some of the documents have offered details on the way intelligence services operated at the time, including CIA cables and memos discussing visits by Oswald to the Soviet and Cuban embassies during a trip to Mexico City just weeks before the assassination. The former Marine had previously defected to the Soviet Union before returning home to Texas.

One CIA memo describes how Oswald phoned the Soviet Embassy while in Mexico City to ask for a visa to visit the Soviet Union. He also visited the Cuban Embassy, apparently interested in a travel visa that would permit him to visit Cuba and wait there for a Soviet visa. On Oct. 3, more than a month before the assassination, he drove back into the United States through a crossing point at the Texas border.

Another memo, dated the day after Kennedy’s assassination, says that according to an intercepted phone call in Mexico City, Oswald communicated with a KGB officer while at the Soviet Embassy that September. The releases have also contributed to the understanding of that time period during the Cold War, researchers said.