The revelation of former President Joe Biden ‘s cancer diagnosis has seemed to halt the ongoing debate over his fitness for office. But the co-author of the new book “ Original Sin ” tells Variety that conversation is fair, and should continue.

Former U.S. President Joe Biden's cancer announcement revived questions on Monday about the extent of his health issues during his tenure, with President Donald Trump saying Biden should have been more transparent with the public.

Joe Biden's announcement that he has been diagnosed with prostate cancer has revived questions about what health issues the former US president was dealing with while he was in the White House. In a statement on Sunday, Biden's office said the 82-year-old had received the diagnosis on Friday after seeing a doctor for urinary symptoms.