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."

Jake Tapper and Alex Thompson's book has already generated a national debate about whether the White House deceived the public about the president's cognitive state and how Biden's late exit from the race undermined the Democratic Party's chances of stopping Trump.

S ince this book was written we have learned Joe Biden has prostate cancer. The sad news was greeted with sympathy from all sides of the political divide, including Donald Trump.

Journalists Jake Tapper and Alex Thompson join Morning Joe to discuss their new book 'Original Sin: President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again'.

Jake Tapper revealed that he apologized to Lara Trump for shutting down a 2020 interview after she alleged Joe Biden was experiencing mental decline.

Jake Tapper faces criticism for a double standard after years of downplaying Biden's health concerns while now demanding transparency from Trump.

Kelly accused the media of protecting the former president and pressed the authors on why their reporting hadn't come out sooner.

The revelation of former President Joe Biden ‘s cancer diagnosis has seemed to halt the ongoing debate over his fitness for office. But the co-author of the new book “ Original Sin ” tells Variety that conversation is fair, and should continue.