In 1912 Theodore Roosevelt included social insurance for sickness in the platform of his Progressive Party (United States, 1912). Around 1915 the group American Association for Labor Legislation attempted to introduce a medical insurance bill to some state legislatures. These attempts were not successful, and as a result controversy about national insurance came about. National groups supporting the idea of government health insurance included the AFL-CIO, the American Nurses Association, National Association of Social Workers, and the Socialist Party USA. The most prominent opponent of national medical insurance was the American Medical Association (AMA); others included the American Hospital Association, the US Chamber of Commerce, and the Life Insurance Association of People.