The fonds consists of material created by Hugh Segal over the span of 25 years as a result of his in-depth involvement with the Progressive Conservative Party, as strategist, candidate, and volunteer, in both Ontario provincial and Canadian federal politics. The material relates to major issues such as Constitutional reform and the Charter of Rights, a national 'social contract' and political policy which has guided and affected the citizens and politicians of both the Province of Ontario and the country as a whole. The fonds has been arranged into the following series according to the general file scheme of the donor: Speeches, Correspondence, Personal, Office of the Premier, Ontario Cabinet positions, Private sector, Prime Minister's Office, Early political activity, PC Party - Ontario Government, and PC Party - Federal Government.