WASHINGTON (AP) — Republicans on the House Oversight Committee issued a subpoena Thursday to Anthony Bernal, a senior aide to former first lady Jill Biden, as part of their rapidly expanding investigation into former President Joe Biden’s mental fitness while in office.

Anthony Bernal, who served as a senior adviser to Jill Biden, bailed on his scheduled hearing in the House Oversight Committee’s investigation of former President Joe Biden’s mental fitness.

Anthony Bernal, the top aide to Jill Biden, abruptly withdrew from his scheduled interview with the House Oversight Committee after President Trump's White House waived his ability to invoke executive privilege to protect private conversations.