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

Former U.S. President Joe Biden's cancer announcement revived questions on Monday about the extent of his health issues during his tenure, with President Donald Trump saying Biden should have been more transparent with the public.

Ezekiel Emanuel, a prominent Democratic figure, told “Morning Joe” the former president "did not develop [prostate cancer] in the last 100 to 200 days."

Vice President JD Vance's reaction to former President Joe Biden's cancer diagnosis sparked mixed reactions online on Monday. Newsweek reached out to Vance through the White House via email on Monday.

“Last week, President Joe Biden was seen for a new finding of a prostate nodule after experiencing increasing urinary symptoms. On Friday, he was diagnosed with prostate cancer, characterized by a Gleason score of 9 (Grade Group 5) with metastasis to the bone,” the statement from Biden’s office said.