Celebrities and politicians are reacting to the news of the death of Rev. Bill Graham.

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Known around the world, the evangelist preached to millions of people into his mid-90s. He died at his Montreat, North Carolina, home Wednesday at 99 years old. He had been battling cancer, pneumonia and a number of other health aliments.

Graham was frequently seen among U.S. presidents -- a dozen of whom he worked with as a spiritual counselor.

Related: Photos: Billy Graham was counselor to presidents

Public figures responded to the news of Graham’s death on Twitter.