(NewsNation) — Former President Joe Biden has been diagnosed with prostate cancer. The news comes just before a book is set to be released detailing an alleged cover-up regarding Biden’s his health and mental decline. 
Former Democratic adviser Dan Turrentine says everyone on Biden’s team, as well as Democratic Party leaders and the media has a credibility problem with revealing the issues about Biden’s health.
Caroline Downey, staff writer for the National Review, says everyone covered up his health issues and only revealed that information when it was convenient.