The House Oversight Committee has requested interviews with several of Biden's former White House aides in light of a reports questioning his mental fitness in his final year in office and alleged efforts by those around him to conceal it -- allegations Biden has vehemently denied.

Joe Biden’s White House doctor’s uncooperativeness in a House probe looking into the former president’s fitness to serve has led the Republican congressman overseeing the investigation to allege a “coverup” of Biden’s “cognitive decline.”