He was re-elected in 1985, 1989, 1994, 1998 and 2003 before retiring at the 2007 elections.
Cusano highest rank was chief whip of the government during Robert Bourassa's fourth term as Premier of Quebec from 1989 to 1994, while he was the Deputy Whip of the government from 1985 to 1989.
Cusano was never named to the Cabinet by Bourassa, Daniel Johnson, Jr.
or Jean Charest serving as Parliamentary Secretary of the Minister of Health and Social Services during Johnson's tenure as Premier in 1994.
During Jean Charest's First Mandate, he was named the National Assembly's First Vice-President.
He died in 2012 of complications from surgery.