In his first public remarks Joe Biden Says "We're Going to Beat This" After Aggressive Prostate Cancer Diagnosis. Since revealing he has been diagnosed with an aggressive form of prostate cancer, former U.S. President Joe Biden expressed strong optimism and gratitude while also addressing the nation's need to defend democracy. Speaking during a Memorial Day event in New Castle, Delaware, Biden acknowledged the severity of his condition but said he felt "good" and remained confident in his cancer treatment plan.