The tight trader consensus around Gisèle Pouhe Njall of Québec solidaire and Pierre-Luc Brillant of the Parti québécois in the Rosemont riding stems from the district's progressive Montreal voter base and the open seat left by former QS MNA Vincent Marissal. Recent candidate announcements, the August 27 writ drop for the October 5 election, and overlapping platforms on housing, health care, and social issues have kept the contest balanced in early projections, with QS and PQ each holding roughly even odds in riding-level models. Lower odds for Liberal David Lavoie, CAQ's Nour Aliyah Attié, and Conservative Mildred Mathieu align with weaker historical support. Further separation could occur through nomination deadlines on September 17, local issue debates, provincial party momentum, or turnout differences among progressive voters before election day.