Overview
- On Monday, November 9, Biden posted on X that his medical team remains optimistic about his response to treatment but that he must cut back public engagements.
- His memoir Promise Me, America is scheduled for publication on November 17 and Biden said he received the May 2025 cancer diagnosis while working on the book.
- Biden was first diagnosed with aggressive prostate cancer that had spread to bone in May 2025 and his team previously reported that fall 2025 radiation had brought the disease under control, but therapy continues.
- Multiple outlets report that planned book‑promotion events have been canceled or scaled back because treatment sometimes limits his ability to travel or speak in public.
- Coverage frames the update in the context of Biden's low public profile since leaving office in January 2025, his last major appearance in September 2026, and earlier reporting that raised questions about his post‑presidential visibility.