Created in 1999 by the initiative of the community to ensure that the question of the electoral system no longer depends exclusively on the decisions of political parties, the MDN helped to open a public debate and significantly promoted the participation of the population in it. MDN brings together organizations as well as citizens of all political allegiance who come together to defend the right to fair and equitable representation. As an autonomous and non-partisan community organization, the MDN has alliances with Quebec social movements and reformist organizations in Canada and Quebec.
It carries out public consultations, public education and mobilization campaigns and puts pressure on the political authorities. It provides analyses that allow people to understand the importance of replacing the current first-past-the-vote voting system with a system that produces proportional results. In 2011, it led the Solution démocratique campaign. Since 2016, it has been leading the Chaque voix compte campaign, which led to a cross-party agreement signed on May 9, 2018 by four of the five main political parties in Quebec. Under this agreement, a bill for the adoption of a compensatory mixed member proportional representation system with regional lists will be introduced in the National Assembly by October 1, 2019.