CNN

Massachusetts Sen. Ted Kennedy, known as the 'Lion of the Senate,' died Tuesday at 77.

(CNN) - Massachusetts Sen. Edward Kennedy, the patriarch of the first family of Democratic politics, died late Tuesday at his home in Hyannis Port, Massachusetts, after a lengthy battle with brain cancer. He was 77.

"We've lost the irreplaceable center of our family and joyous light in our lives, but the inspiration of his faith, optimism and perseverance will live on in our hearts forever," a family statement said. "We thank everyone who gave him care and support over this last year, and everyone who stood with him for so many years in his tireless march for progress toward justice."

President Obama learned about Kennedy's death at 2 a.m. Wednesday, according to a senior administration official. Obama later called Kennedy's widow to offer condolences.

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