Republican lawmakers mourned the news that conservative commentator and writer Charles Krauthammer is nearing the end of his life, with a number of prominent conservatives offering condolences and celebrating his life.

"A man of incredible intellect & character, Charles has graciously shared his wisdom & humor with countless loyal viewers & readers, myself included," Sen. John McCain John Sidney McCainThe Memo: Trump's strengths complicate election picture Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' Cindy McCain: Trump allegedly calling war dead 'losers' was 'pretty much' last straw before Biden endorsement MORE (R-Ariz.) tweeted. "I’m honored to call him my friend & wish him & his family peace."

Cindy & I are praying for our dear friend Charles @krauthammer . A man of incredible intellect & character, Charles has graciously shared his wisdom & humor with countless loyal viewers & readers, myself included. I’m honored to call him my friend & wish him & his family peace.

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"Karen and I were saddened to learn that Charles @Krauthammer, a man we greatly admire, is nearing the end of his extraordinary life," Vice President Pence tweeted. "His wit, his wisdom, and his tireless defense of Western values have made an indelible mark on the minds of millions of Americans."

Krauthammer, a prominent Fox News commentator, revealed in a letter on Friday that he has only "a few weeks to live" due to cancer.

"My doctors tell me their best estimate is that I have only a few weeks left to live," Krauthammer wrote. "This is the final verdict. My fight is over."

Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellFEC flags McConnell campaign over suspected accounting errors Poll: 59 percent think president elected in November should name next Supreme Court justice Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE (R-Ky.) praised Krauthammer's work on Thursday as being "in a class of its own."

"In every case, on practically every major national issue, Charles has elevated our public discourse," McConnell said in a statement. "He’s illuminated a dizzying array of topics for his enormous audience with clear thinking and seemingly bottomless expertise. Quite simply, his work is in a class of its own."

Sen. Lindsey Graham Lindsey Olin GrahamSenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (R-S.C.) also offered his condolences to Krauthammer and his family, calling the author "one of the strongest voices and most brilliant minds in all of American politics."

"I pray God will provide him and his family comfort in these difficult times," Graham wrote on Twitter. Very sad to hear about Charles @krauthammer.



He is one of the strongest voices and most brilliant minds in all of American politics.



I pray God will provide him and his family comfort in these difficult times. — Lindsey Graham (@LindseyGrahamSC) June 8, 2018

"Sad to hear this. Charles has an agile mind and is always ready to defend his beliefs," Swalwell tweeted. "He once advised me, before going on @TuckerCarlson for the first time to beware, 'I once saw Tucker interview a shark-bite victim,' he told me. 'And Tucker took the side of the shark.' "