Former top White House aide Donilon testifies in Biden documents probe

President Biden's longtime national security adviser testified last week in front of a federal grand jury investigating how classified documents from his administration and time as vice president ended up at his home and office, CNN reported.<br><br>Thomas Donilon, who served as Biden's national security adviser from January 2021 to May, was offered immunity in exchange for his testimony, CNN reported.<br><br>The news may indicate new movement in what may be the closest that a grand jury has come to the president in special counsel Robert Hur's investigation into the discovery of top-secret files at Biden's home in Wilmington, Delaware, and at his old office at the Penn Biden Center in Washington, D.C.<br><br>CNN reported that some of the documents were "top secret/sensitive compartmented information" — the highest classification of U.S. government secrets — and some were classified at the "top secret" or "secret" level.<br><br>"You've got this constant dripping of the news," said former Justice Department attorney Michael Zeldin, who focuses on grand juries and federal criminal investigations.<br><br>"I think it's an indication of a very active grand jury. It's an indication that they're very methodically moving on the president's inner circle," he said.