Joe Biden's inner circle's portrayal of him as sharp is questioned in 'Original Sin,' revealing efforts to shield his decline before the 2024 election.

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."

Five people were running the country, and Joe Biden was at best a senior member of the board,” one source said in the book “Original Sin.”