An MNA for Quebec Solidaire has called a press conference for Sunday morning.
Manon Massé says she'll be making an announcement about her political future.
Le Devoir reports Massé wants to be the permanent spokesperson for the party.
She's currently interim spokesperson.
Party co-founder and MNA Francoise David announced recently her intention to leave politics.
Party president Andres Fonticella has announced he's leaving his position in May.