President Trump has pulled back on his promise to release a complete set of more than 3,000 sealed or redacted documents in the JFK assassination — instead placing hundreds of the records under a six-month review.

FBI, CIA and other intelligence officials had made a last-ditch appeal to keep the most sensitive of the documents secret, the White House said.

“I have no choice,” Trump said in a memo.

Officials say Trump will impress upon federal agencies that the files should stay secret after the review “only in the rarest cases.”

Much of Thursday passed with nothing from the White House or National Archives except silence, leaving unclear how the government would comply with a law requiring the records be released by the end of the day — unless Trump decided to hold some back.

White House officials said the FBI and CIA made the most requests within the government to withhold some information.

The sudden turn of events came after Trump tweeted on Wednesday, “The long anticipated release of the #JFKFiles will take place tomorrow. So interesting!”

Some 2,800 records will still be released from the National Archives Thursday night to meet the deadline mandating they be made public 25 years after the Oct. 25, 1992 enactment of the JFK Assassination Records Collection Act.

But the retention of hundreds more documents will likely continue to fuel speculation about a conspiracy surrounding the 1963 assassination.