The Quebec general election on October 5, 2026, features a closely contested race in Côte-du-Sud, where incumbent CAQ MNA Mathieu Rivest faces PQ candidate Valérie Hamel, PCQ contender Frédéric Poulin, and PLQ nominee Nancy St-Pierre. Late-August projections from sources such as Vote-Scope and Qc125 show the top parties separated by narrow margins, with CAQ, PQ, and PCQ each polling in the mid-20s to low-30s percent range amid broader provincial volatility. The riding’s shift from CAQ’s 2022 dominance reflects gains by opposition parties on regional priorities including health-care access, agricultural support, and local services. With nomination deadlines approaching and early voting set for late September, trader consensus remains balanced as no single candidate has established a durable lead in recent polling or campaign momentum.