Donilon is the latest member of Biden’s team to testify in the Biden autopen investigation, and the second from the “Politburo” group of his closest advisers.

Steve Ricchetti, who served as counselor to former President Joe Biden, appeared before a House committee Wednesday regarding the investigation into the former president’s mental and physical fitness.

Former White House advisor and longtime Biden ally Michael Donilon is appearing before House investigators for a closed-door ...

Mike Donilon, former President Joe Biden's senior adviser, is set to appear for a closed-door interview on Thursday.