The release was last june and the government tried to prevent it due to international security reasons.
According to the newspapers The New York Times and The Wall Street Journal, the Justice Department convened a grand jury that issued a subpoena on Monday to access the communications records of Simon & Schuster, the publisher of the former adviser's memoirs, entitled “ The Room Where It Happened: A White House Memoir ”.
Newspaper reports, citing people familiar with the matter, indicated that Javelin, Bolton's literary agency, was also cited for documents related to the book.
The Journal indicated, according to its sources, that they refused to be identified, that the subpoenas requested "all communications with Bolton."
On June 16, the Trump administration sued Bolton to prevent his memoir from going on sale, arguing that it reveals confidential information that could endanger the national security of the country.
That lawsuit, called "United States of America against John Bolton," filed in federal court in Washington was unsuccessful and the book finally went on sale on June 23.
"With hundreds of thousands of copies around the world, many in newsrooms, the damage has already been done," wrote Judge Royce C. Lamberth of the federal court of the District of Columbia, the NYT recalled Tuesday.
The publication noted that the judge suggested, however, that Bolton could be criminally prosecuted if he allowed the book to be published before receiving final official notification that the government review was complete.
According to the Times, the question is whether Bolton received government approval that the pre-publication review process was over.
The New York newspaper reports that while the National Security Council's highest authority for the pre-publication review reported in an email that it was satisfied with the edits made by Bolton to address its concerns about classified information, the White House initiated another review without notifying the former adviser in which the official in charge said in an affidavit that he found secret information in the manuscript.
Even without receiving the final approval letter, the former adviser gave Simon & Schuster a free pass for publication, the newspaper said.
The former official, in addition to the criminal investigation, faces civil litigation that could lead him to cede part of the book's profits to the government, the version added.
Bolton, who was Trump's national security adviser from March 2018 until his dismissal last September, offered in January to testify in the impeachment against the president and claimed that he had unpublished and relevant information, but the Republican majority in the Senate vetoed his appearance.