Two former FBI agents central to a so-called grand conspiracy case have signaled that their testimony may not support the prosecution.
Their lawyers said the agents would speak only to a narrow issue involving the retention of classified materials.
That testimony concerns an allegation that Donald Trump, then a private citizen, unlawfully kept hundreds of highly classified documents.
The defense position suggests the agents will not bolster broader claims of a coordinated conspiracy.
Prosecutors had hoped the witnesses would connect scattered events into a single organized effort.
Instead, the expected testimony focuses on document handling rather than any wider scheme.
The development could weaken the case against other defendants facing conspiracy charges.
Legal analysts say the shift places more pressure on remaining evidence and other witnesses.
The agents have not yet taken the stand, and no date has been set for their appearance.
Both sides continue to dispute how much weight the testimony should carry at trial.
