Donald Trump has joined the growing clamor for Joe Biden‘s White House doctor to be investigated for giving the former president a clean bill of health months before he revealed he had an aggressive form of prostate cancer.

Former president Joe Biden has been diagnosed with prostate cancer, his office announced on Sunday. The 82-year-old has what is described as an “aggressive form” of cancer that has already spread to his bones. Though his disease is serious, there are promising treatment options, and Biden could potentially live for years with the diagnosis.