Tapper and Thompson rely largely on unnamed sources in "Original Sin." Among the 200 people they talked to are Democratic Party insiders and four cabinet secretaries.

In 'Original Sin,' Jake Tapper describes a 'cover-up' of Joe Biden's decline. CNN's Jake Tapper calls his new book a tragedy. Original Sin: President Biden's Decline, Its Cover-Up, ...

CNN's Jake Tapper calls his new book a tragedy. Original Sin: President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again, which Tapper co-authored with Axios' Alex Thompson ...

CNN's Jake Tapper calls his new book a tragedy. Original Sin: President Biden's Decline, Its Cover-Up, and His Disastrous Choice to Run Again, which Tapper co-authored with Axios' Alex Thompson, ...