Teresa MacNeil says the seven commissioners need to decide how to react to the government's rejection of its interim report.
Attorney General Ross Landry has said the commission's report violated the legislature's terms of reference when it recommended maintaining four so-called protected constituencies with large francophone and black populations.
Landry says the provincial guidelines clearly stated that the population of ridings must be within 25 per cent of the average constituency population — a criteria the minority ridings don't meet.
MacNeil says that members of the commission are reviewing Landry's written response.
She says the commission will have to decide whether to comply with Landry's comments or to resign.