The Guardian's Hugo Lowell also noted that the 11th Circuit Court of Appeals' decision complicates the legal team's efforts as they attempt to slow the investigation.

Lowell writes that is one of the reasons for the mood of panic.

"The 29-page decision amounted to a sharp rebuke of the rulings by US District Court Judge Aileen Cannon, who is overseeing the case in Florida, but it also brought an end to Trump’s attempt to slow down the investigation that his advisers feared was moving perilously fast," the Guardian report states.

It adds, "Being allowed to examine the roughly 100 documents marked classified means Justice Department investigators can now resume the investigation into the most serious lines of inquiry – the willful retention of national defense information and obstruction – with the primary evidence itself."

Since Trump's legal team is not allowed to review the documents themselves, Lowell believes that may be more concerning for them.

"Trump’s goal in requesting a special master was multi-pronged from the start, according to sources familiar with the matter, and the principal – though publicly unstated – aim was to apply the brakes on the criminal investigation, after the FBI search of Mar-a-Lago took Trump’s lawyers by surprise," Lowell wrote. "A second major aim, the sources said, was to use the special master motion as a vehicle to get more insight into what documents the FBI retrieved from the property because they were initially in the dark about the extent of Trump’s, as well as their own, potential exposure."