Overview

• A spokesperson confirmed the 82-year-old former president started the regimen on Saturday.
• The cancer was disclosed in May and had already spread to his bones at the time of diagnosis.
• Doctors describe the disease as aggressive yet expected to respond to hormone-directed therapy and radiation.
• In September, Biden received treatment for skin cancer, with malignant facial cells removed and a noticeable forehead bandage afterward.
• In June, President Donald Trump directed the White House counsel to investigate whether people conspired to mislead the public about Biden’s mental state.