In this episode of Fresh Air, Terry Gross interviews Jake Tapper, CNN's chief Washington correspondent, about his new book, "Original Sin: President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again." Tapper discusses the concerns surrounding President Biden's cognitive decline, the alleged attempts by his inner circle to hide it, and the impact of the disastrous debate with Donald Trump. He recounts instances where Biden appeared confused or disoriented, and how top Democrats expressed concerns about his capacity to serve. Tapper also reflects on his own coverage of Biden's health and acuity, expressing regret for dismissing concerns about Biden's cognitive abilities in a previous interview with Lara Trump. The conversation explores the Democratic Party's reaction to these issues and the broader implications for the upcoming election.