The news of the former president's illness, coupled with the damage to Biden world’s credibility when it comes to his fitness, has led to speculation about a cover-up.

Biden’s cancer diagnosis arrived amid heightened scrutiny ... I wish people could take a moment and focus on the impact of this on the former president and his family,” said Brad Bannon ...

Former president Joe Biden’s newly diagnosed prostate cancer, an aggressive form that ... their own biggest advocates and have the biggest impact on their lives by early detection and treatment ...

Joe Biden’s announcement Sunday that he was diagnosed with an aggressive form of prostate cancer surprised many, but a doctor told MSNBC’s Morning Joe Monday that Biden has probably had cancer for many years.

Here's a look at former President Joe Biden's "Cancer Moonshot" initiative's legacy and its impact on research since the task force began.