Alex Trebek announced Wednesday that he has pancreatic cancer, saying he’ll continue to host “Jeopardy!” as he battles the disease.

“I have some news to share with all of you, and it’s in keeping with my longtime policy of being open and transparent with my ‘Jeopardy!’ fanbase,” the quiz show host said in a YouTube video posted Wednesday.

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“Just like 50,000 other people in the United States each year, this week I was diagnosed with stage IV pancreatic cancer,” Trebek said into the camera.

“Now normally the prognosis for this is not very encouraging, but I’m going to fight this,” Trebek continued. “And I’m going to keep working. And with the love and support of my family and friends, and the help of your prayers also, I plan to beat the low survival rate statistics for this disease.”

“Truth be told, I have to, because under the terms of my contract, I have to host ‘Jeopardy!’ for three more years,” Trebek quipped.

Last year, Trebek, 78, extended his contract to host “Jeopardy!” through 2022.

“So help me,” Trebek told viewers. “Keep the faith, and we’ll win. We’ll get it done.”

Trebek has hosted “Jeopardy!” since 1984. Born in Canada, he became an American citizen in 1998.

He’s often weighed in on politics, predicting in a 2016 interview with ITK that then-Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonThe Hill's Morning Report - Crunch time arrives for 2020 Dems with debates on deck The Memo: All eyes on faltering Biden ahead of first debate Trump says he's not prepared to lose in 2020 MORE would win the election. “All of the polls seem to indicate that. And Mr. Trump seems bent on shooting himself in the foot every time he takes a step forward, and that’s unfortunate for him,” Trebek said at the time.

Last year, Trebek moderated a Pennsylvania gubernatorial debate.

"Jeopardy!" has also played host to a bevy of political contestants — and has its share of fans — as it made more than one trip to the nation's capital to film Washington-themed weeks over the years.

Shortly after Trebek's announcement, Sen. Patrick LeahyPatrick Joseph LeahyThis week: Congress set for clash on Trump's border request Congress unlikely to reach deal on Trump border bill before break GOP lawmakers want Mulvaney sidelined in budget talks MORE (D-Vt.) offered support on Twitter: