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. Needing video of then-President Biden speaking sharply and fluidly in a freewheeling setting,

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

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.

I don’t think it was a cover-up," said California Democrat Rep. Ro Khanna, "but I do think that the advisers and people close to Joe Biden owe an explanation."

Former White House staff denied witnessing health concerns, but Jake Tapper suggested even some government officials were shielded from seeing Biden.

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,