Jake Tapper, who has co-authored a new book about Joe Biden, has broken down what he thinks is a "big tell" that Biden's decline was being covered up. The CNN reporter, along with Axios journalist Alex Thompson, has written a book called Original Sin: President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again.

Biden campaign adviser recalled thinking that former President Biden could not “form a f—ing sentence” during a post-debate conversation aboard Air Force One last summer, according to

A new book by two journalists says Joe Biden wasn’t really in charge as President, and five sides made big decisions. It raises questions about his health and who truly led the country.

Five people were running the country,” a political insider told the authors of the new book Original Sin. “And Joe Biden was at best a senior member of the board.”