Former Sen. Ben Sasse announced on Tuesday that he has been diagnosed with stage 4 metastatic pancreatic cancer.

The Nebraska Republican shared the news on X, writing in a lengthy social media post that he had received the diagnosis last week.

“Advanced pancreatic is nasty stuff; it’s a death sentence,” Sasse said. “But I already had a death sentence before last week too — we all do.”

The two term senator retired in 2023 and then went on to serve as president of the University of Florida. He eventually left the school to spend more time with his wife, Melissa, after she was diagnosed with epilepsy.

Sasse continued to teach classes at University of Florida’s Hamilton Center after he stepped down as president. He previously served as a professor at the University of Texas, as an assistant secretary at the Department of Health and Human Services and as president of Midland University.

Sasse on Tuesday shared that he and his wife have only grown closer since and opened up about his children’s recent successes and milestones.

“There’s not a good time to tell your peeps you’re now marching to the beat of a faster drummer — but the season of advent isn’t the worst,” Sasse said. “As a Christian, the weeks running up to Christmas are a time to orient our hearts toward the hope of what’s to come.”

Sasse said he’ll have more to share in the future, adding that he is “not going down without a fight” and will be undergoing treatment.

“Death and dying aren’t the same — the process of dying is still something to be lived. We’re zealously embracing a lot of gallows humor in our house, and I’ve pledged to do my part to run through the irreverent tape,” Sasse said.