Career
Dionne ran as a candidate under the Quebec Liberal Party banner in the 1985 Quebec general election. Dionne easily held her seat in the 1989 Quebec general election winning well over half the popular vote. Dionnes bid for a third term in office would be a struggle.
She held her seat against Parti Québécois candidate Hélène Alarie by a margin of nearly 400 votes.
She resigned her seat on May 2, 1997 to run as a federal Liberal candidate in the 1997 Canadian federal election. Dionne ran in a hotly contested five way race in the electoral district of Kamouraska—Rivière-du-Loup—Temiscouata—Les Basques.
Dionne is attempting a political come back, she ran for another term in provincial office under the Liberal banner in the Kamouraska-Témiscouata by-election of November 29, 2010 but lost to the Parti Québécois candidate André Simard.
