Poll results were published in La Presse today on the races in the three ridings having byelections on September 17 (report in English here). The NDP's Thomas Mulcair leads by six points in Outremont and the Conservatives are ahead in Roberval-Lac-Saint-Jean, while the Bloc is well ahead in Saint-Hyacinthe-Bagot.
The poll has quite a large sample size in each riding (1037 in Outremont) and therefore deserves to be taken seriously.
TC will write about the significance of the results next week, but won't comment further until the ballots come out of the box.
But to brag a bit, TC saw the potential here and wrote of Mulcair in July just after the byelections were called, " he really does have the potential to win".