There is speculation about the identity of a possible confidential source at Mar-a-Lago.
A member of Trump's family is thought to have done it.
The ex president's home was searched by the FBI.
A member of Donald Trump's family may have tipped off the FBI about the presence of classified documents at Mar-a-Lago.
Multiple sources close to Trump told the publication that after the August 8 search of Trump's resort in Palm Beach, Florida, aides began speculating about who might have spoken to the agency.
More than a dozen boxes of items were taken in the search. They seemed to have information about what to look for.
The outlet's sources said that initial speculation focused on Trump's political aides and Mar-a-Lagom staff.
According to the sources, some aides believed that only a family member would have known where Trump's safe was located.
Mary, Trump's estranged niece, and Michael Cohen, Trump's former attorney, have speculated that the former president's son-in-law may be an FBI mole. They didn't offer evidence to support the claim.
According to multiple reports, agents conducting the raid were acting on information that Trump had not returned all the classified information requested by the Justice Department and National Archives.
According to the New York Times, agents obtained a subpoena of a hallway near the storage room where the documents were being kept and saw something that alarmed them, as well as obtaining video of the hallway.
The affidavit which details the probable cause of the search was requested not to be released by the Justice Department.
He wants the document to be made public.
The Espionage Act is one of the laws that agents believe Trump may have broken.
The documents were mishandled, but Trump denied any wrongdoing.
Business Insider has an article on it.