The House of Commons Special Committee on Electoral Reform (ERRE) (French: Comité spécial sur la réforme électorale) was a special committee of the House of Commons of Canada established during the 42nd Canadian Parliament to investigate reforms to the Canadian electoral system. The formation of "an all-party Parliamentary committee to review... [electoral] reforms" was an election promise by Liberal Party leader Justin Trudeau in the 2015 federal election. After the Liberals won a majority in the election, and Trudeau became Prime Minister of Canada, he indicated the formation of a special committee was a priority in his mandate letter for Minister of Democratic Institutions Maryam Monsef. Shortly after the committee submitted its report to Parliament on December 1, 2016, Monsef was trans