Member of the legislature
He ran as an Action libérale nationale candidate in the district of Montréal–Saint-Henri in the 1935 provincial election and won. Lauriault refused to join Maurice Duplessis's Union Nationale. Instead, he ran as an Independent Liberal in the 1936 election and lost against René Labelle.
Lauriault won a seat to the City Council of Montreal in 1944. He was re-elected in 1947, 1950, 1954 and 1957. He was defeated in 1960.
He died on November 13, 1976 in Montreal.
|National Assembly of Quebec|
Joseph-Maurice Gabias (Liberal)
| MLA, District of Montréal–Saint-Henri
René Labelle (Union Nationale)