She represented Vanier in the National Assembly of Quebec from 1994 to 2003, as a member of the Parti Québécois (PQ).
Barbeau worked as an aide to François Beaulne, the PQ member for Bertrand.
Barbeau served in the government of Lucien Bouchard as a Deputy Whip and as a Parliamentary Secretary to the Minister of Social Solidarity from January 27, 1999 to March 8, 2001 when Bernard Landry took over as Premier.
[1] She abruptly ended her political career in 2003, a month before that year's elections were called, after she was diagnosed with kidney cancer while pregnant, forcing an early birth a month later and eventually leading to the loss of both kidneys.
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