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.

Prostate cancer is the most common form of cancer in men, with the American Cancer Society reporting that one in eight men in the United States is diagnosed with it over their lifetime.

Former President Joe Biden sent out a thank you Monday to those who have shown concern since it was announced that he has been diagnosed with prostate cancer.