Joe Biden’s doctor under the microscope: Dr. Kevin O’Connor faces tough questions amid fallout from ex-President’s cancer news, did he fail to diagnose earlier?

Former US President Joe Biden's prostate cancer diagnosis sparks controversy. The cancer has spread to his bones. Dr. Kevin O'Connor, ex-White House physician, faces criticism. Questions arise about the timing of the diagnosis. Experts and critics question if early signs were missed. Concerns are raised about potential cover-ups during Biden's presidency.