South-shore MNA Catherine Fournier may leave the PQ on Monday

Catherine Fournier, the MNA for the south-shore riding of Marie-Victorin, is widely expected to announce Monday morning that she is leaving the Parti Québécois.

She has called a press conference to "discuss her political future" at the Maison de la Culture in Longueuil.  

The Journal de Montreal, TVA Nouvelles and Radio-Canada are all reporting that it is likely she will leave the separatist party.

The youngest member of the National Assembly, Fournier first entered the provincial legislature after a December 2016 by-election, called to replace Bernard Drainville.  She narrowly defeated CAQ candidate Martyne Prévost in last fall's election, prevailing by just over 700 votes.

It is not clear if Fournier will sit in the National Assembly as an independent or join another party.  

She has in the past been critical of the PQ's separatist rival Quebec Solidaire, but even if she sits as an independent or joins the CAQ, it is QS that will perhaps be the biggest winner from her qutting the PQ.  

Fournier leaving its ranks would leave the Péquistes one seat behind QS in seat-count, meaning the once-mighty party of Lévesque, Parizeau, Bouchard and Marois would officially become the smallest major party in provincial politics.