Gilles Grégoire

Gilles Grégoire, a founding member and key organizer of the Ralliement des créditistes (the Quebec wing of Social Credit), was expelled from the party around 1966 after clashing with leader Réal Caouette over the party's direction. Grégoire had been instrumental in leading the 1963 split of 13 Quebec Social Credit MPs from the national party, forming the Ralliement des créditistes as a distinct Quebec populist force. However, his relationship with Caouette deteriorated, and he was pushed out of the movement he had helped create.

Grégoire later became one of the co-founders of the Parti Québécois in 1968, joining René Lévesque's sovereignty movement. He served as a PQ MNA in the Quebec National Assembly. His political journey — from Social Credit populism to Quebec sovereignty — illustrated the ideological fluidity of Quebec politics in the 1960s, where anti-establishment sentiment could flow in multiple directions simultaneously.