CNN anchor Jake Tapper said the cover-up of former President Joe Biden's cognitive decline while he was in the White House was "maybe even worse than Watergate" in an interview with Piers Morgan on Monday.

Jake Tapper, CNN anchor and co-author of the new book Original Sin, detailing the alleged “cover-up” of the true depths of Joe Biden’s cognitive decline, has told Bill Maher that the former president should share some of the blame for his own downfall.

A book the CNN host co-wrote has received positive reviews and appears to be a sales hit. But it has also generated intense scrutiny of him and his work.