Jake Tapper and Alex Thompson share explosive new reporting about former President Biden’s decline from their book and tell CNN’s Wolf Blitzer how these revelations will shape their coverage in the future.

As House Republicans prepare to investigate former President Joe Biden’s health and mental fitness while in office, they are increasingly zeroing in on his use of a so-called autopen to sign certain pieces of legislation and executive orders.

President Joe Biden's "aggressive" prostate cancer has led to renewed interest in his health during his presidency

How was Joe Biden’s cancer not caught earlier? The news that the former president is battling an aggressive, stage-4 prostate cancer that has spread to the bone ignited a public debate about why a person with peerless access to medical care was diagnosed at such an advanced stage with a disease that is quite common in men his age.

Former President Joe Biden is facing an “aggressive” case of Stage 4 prostate cancer, his office announced over the weekend in a statement. “Cancer touches us all. Like so many of you, Jill and I have learned that we are strongest in the broken places. Thank you for lifting us up with love and support,” Biden posted on social media Monday morning.