In a copy of “Original Sin” obtained by ABC News, journalists Jake Tapper and Alex Thompson allege Joe Biden hid info about his son Beau's cancer diagnosis.

Get all the news you need in your inbox each morning. The "Daily Show" segment began with clips of Tapper repeatedly promoting his book on CNN, telling viewers they "will not believe" what the coauthors "found out" during his reporting.

According to Tapper and Thompson, Harris advisers adopted “gallows humor” about Biden’s many missteps — such as when he told party loyalists at a New Hampshire campaign office Oct. 22 that “we gotta lock him up” in reference to the former president and then-Republican nominee

Tapper and Thompson's book, "Original Sin," paints a damning portrait of Biden's team covering up his diminished state before the election.

President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again," by CNN's Jake Tapper and Axios' Alex Thompson. Mike Donilon, a top adviser to former President Biden, was paid about $4 million to work on the 2024 Biden campaign at the president's insistence,

A code of silence among Democratic elites and the media prohibited any public talk of Joe Biden’s decline—until it was too late.

Tapper and Thompson have hired a crisis PR firm, Heller Co., led by Risa Heller, to navigate the book’s release and roll out, as Breaker Media, co-written by former Daily Beast reporter Lachlan Cartwright, reported.

"Original Sin" by Jake Tapper and Alex Thompson explores President Joe Biden's decline. But the book wants to rewrite the legacy media's role in covering it up.