From 1966 to 1969, Morin chaired the
Estates General of French Canada and joined in 1970 the
Quebec sovereignty movement. He became president of the
Mouvement national des Québécoises et des Québécois in 1971. He failed to win a seat in
Bourassa in the
1970 Quebec provincial election but won a seat in the riding of
Sauvé in the
1973 election. After the latter election the
Parti québécois became the official opposition since the former opposition party, the
Union Nationale, had failed to win any seats. Since the party leader,
René Lévesque, had not won a seat in the 1973 election, Morin became leader of the Opposition in the National Assembly until the
1976 election, which the Parti québécois won. As a member of Lévesque's government, Morin was appointed successively minister of education (1976–1981), cultural and scientific development (1981–1982) and intergovernmental affairs (1982–1984). Morin returned to teaching in 1984 at Université de Montréal, where he became professor emeritus in 1997. == Honors ==