 This alienated many Quebec nationalists who demanded legal, constitutional recognition of the collective cultural identity in Quebec.The conflict culminated in the Parti Québécois government of René Lévesque holding a province-wide referendum on Sovereignty-Association in 1980 that proposed that Quebec would assume all federal powers while maintaining economic links to Canada; it was rejected by 60% of Quebecers.Prime Minister Pierre Trudeau subsequently pushed through the amendment of the constitution with the Canada Act 1982.