CHICAGO (WGN) — Former Illinois Gov. Jim Edgar on Monday revealed he’s been diagnosed with pancreatic cancer.

In a statement, the 78-year-old Republican said he and his wife “are facing a new, significant challenge.”

Edgar’s full statement reads:

“Doctors at Rush University Medical Center in Chicago have determined I have pancreatic cancer that has spread. They and physicians at Mayo Clinic are coordinating on a treatment regimen that I am following initially in Arizona, where we spend the winter, and later in Springfield when we return. We do not underestimate this challenge, but we have confidence in the medical team helping us address it. Brenda and I remain hopeful, and we are grateful for the kindness of so many who have offered their prayers and support.”

Edgar served as the 38th governor from Illinois, from 1991 to 1999. He previously served in the Illinois House of Representatives and as Secretary of State. He was succeeded by Gov. George Ryan in the governor’s office.

He has remained active in the political arena since leaving office and has been a vocal critic of President Donald Trump.