Former President Joe Biden sent out a thank you Monday to those who have shown concern since it was announced that he has been diagnosed with prostate cancer.

"We wish Joe a fast and successful recovery," the president said on Truth Social, after his predecessor was diagnosed with an aggressive form of prostate cancer.

Sympathetic reactions poured in from leaders across the political spectrum Sunday as former President Joe Biden, 82, was diagnosed with an 'aggressive form' of prostate cancer.