He lost in 1936 and retired from politics.
He served as Conservative leader of the Opposition in the Legislative Assembly of Quebec from 1931 to 1932, after Conservative leader Camillien Houde lost the 1931 Quebec election and also failed to win a seat.
On November 7, 1932, the Conservative caucus chose Maurice Duplessis to be leader of the Opposition, replacing Gault.
Duplessis was formally elected Conservative Party leader on October 4, 1933.
On December 12, 1933, Gault was expelled from the Conservative caucus and sat as an independent.