Meanwhile, over the weekend, Republicans in the House of Representatives requested access to Biden's visitor logs. On Monday, the White House Counsel's office informed Fox News that no such records were kept.

"Like every President in decades of modern history, his personal residence is personal," the White House Counsel's Office said in a statement. "But upon taking office, President Biden restored the norm and tradition of keeping White House visitors logs, including publishing them regularly, after the previous administration ended them."

Secret Service spokesman Anthony Guglielmi also explained to reporters that "we don’t independently maintain our own visitor logs because it’s a private residence."

Shortly after this development, Trump took to his Truth Social app to accuse Biden of sloppily stashing classified documents in his home and issue a thinly-veiled, albeit vague, threat of blackmail.

9:34 a.m.:

The White House just announced that there are no LOGS or information of any kind on visitors to the Wilmington house and flimsy, unlocked, and unsecured, but now very famous, garage. Maybe they are smarter than we think! This is one of seemingly many places where HIGHLY CLASSIFIED documents are stored (in a big pile on the damp floor). Mar-a-Lago is a highly secured facility, with Security Cameras all over the place, and watched over by staff & our great Secret Service. I have INFO on everyone

Reporting by The New York Times in December revealed that it was actually Trump who casually left classified documents strewn throughout Mar-a-Lago.

"Most of the classified documents in August were found in a storage area, which is accessible through two sets of arched doors, people familiar with the property told theTimes. The doors are near the pool area, a popular event space," the Times wrote. "Highly sensitive materials like the documents found at Mar-a-Lago are usually viewed inside a secure, enclosed area with a safe built to meet strict guidelines. Periodic inspection is also required. But the Justice Department had noted that Mar-a-Lago did not have a 'secure location authorized for the storage of classified information.'"

The Times recalled that "Trump has said that before leaving office he had declared the documents declassified, but so far, no credible evidence was found to support this," later adding that "just outside the arched doors leading to the storage area, there were many large-scale gatherings near the pool area and outdoor patio, during the time the documents were on the property."