President Joe Biden 's career came to an end in January after decades public service. On Sunday, May 18, a spokesperson for the former president, 82, has announced Biden has an "aggressive form" of prostate cancer that spread to the bone.

Over the weekend, Joe Biden informed the nation of his diagnosis of prostate cancer. For the former president, it is, of course, a personal matter, but it can also be something else: an opportunity to show leadership, not in the arena of national or global politics, but on a vulnerable, human level.