Former President Barack Obama on Sunday wished former President Joe Biden well after news of his cancer diagnosis broke.

“Michelle and I are thinking of the entire Biden family,” Obama said in a social media post about his former vice president, who served in the White House with him from 2009–2017.

“Nobody has done more to find breakthrough treatments for cancer in all its forms than Joe, and I am certain he will fight this challenge with his trademark resolve and grace. We pray for a fast and full recovery,” Obama’s post continued.

The Obamas joined former Vice President Kamala Harris and President Donald Trump, who also publicly sent their regards to Biden in joint statements with their spouses.

Biden’s office announced earlier on Sunday that the 82-year-old was diagnosed with prostate cancer with a “Gleason score of 9” on Friday.

“While this represents a more aggressive form of the disease, the cancer appears to be hormone-sensitive which allows for effective management,” Biden’s office said. “The President and his family are reviewing treatment options with his physicians.”

Biden is known for having made the advancement of cancer treatment a priority during his tenure, specifically through “Cancer Moonshot.”

The cancer initiative was started during Obama’s administration after Biden’s oldest son, Beau, died from brain cancer in 2015. It continued during Biden’s administration.

Cancer Moonshot’s goal was to reduce the death rate of cancer by half over a 25-year period.