Four Biden White House staffers will voluntarily answer questions about the president’s apparent cognitive decline

The two most prominent White House staffers will be former deputy chief of staff Annie Tomasini and Neera Tanden , the former director of the Domestic Policy Council under Biden .

The House Oversight and Government Reform Committee has subpoenaed Biden ’s White House physician, Dr. Kevin O’Connor , to appear for a deposition on June 27 .