Following news of Sen. Edward Kennedy's death Tuesday night, groups from all corners of the health care community mourned the loss of reform's strongest advocate.

Kennedy, D-Mass., first pushed for universal health care coverage in the 1970s, and his absence during health care reform discussions this summer has been felt by those involved.

"Older Americans lost a champion and this nation lost a role model," AARP CEO Barry Rand said in a statement. "Senator Kennedy was a tireless fighter for the poor and the working class and the programs they relied upon, especially Medicare and Social Security."

"We are truly saddened by the passing of a giant in the area of health care policy -- our friend, U.S. senator and recipient of the American Cancer Society's highest award, Medal of Honor and the National Distinguished Advocacy Award, Edward 'Ted' Kennedy," American Cancer Society CEO John Seffrin said in a statement. "Senator Kennedy was a passionate advocate for cancer patients and their families, not just in his home state of Massachusetts, but nationwide."

Kennedy "was America's health care champion. His contribution to health care policy is unmatched," said Karen Ignagni, president and CEO of America's Health Insurance Plans. "AHIP and its members join the entire health care community in extending our thoughts and prayers to the Kennedy family."