Tapper's book, co-authored by Alex Thompson, describes a president who struggled to function: "One person told us that the presidency was, at best, a five-person board with Joe Biden as chairman."

Plus, Mike Pence criticizes President Donald Trump and the pope warns against hatred and “religious propaganda.”

Joe Biden not remembering the name of an aide who had worked for him for decades. Top staffers keeping him away from his own cabinet. Discussions about the possibility of putting the president in a wheelchair if he were reelected.