Sen. Edward M. Kennedy, the liberal lion of the Senate and haunted bearer of the Camelot torch after two of his brothers fell to assassins' bullets, died late Tuesday after battling a brain tumor. He was 77.

For nearly a half-century in the Senate, Kennedy was a steadfast champion of the working class and the poor, a powerful voice on health care, civil rights, and war and peace. To the American public, though, he was best known as the last surviving son of America's most glamorous political family, the eulogist of a clan shattered again and again by tragedy.

His family announced his death in a brief statement released early Wednesday.
"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," the 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, fairness and opportunity for all."

Kennedy was elected to the Senate in 1962, when his brother John was president, and served longer than all but two senators in history.

Over the decades, Kennedy put his imprint on every major piece of social legislation to clear the Congress.