About this Quebec poll from Mainstreet Research
This Quebec poll was fielded by Mainstreet Research in June 2017, with a middle field date of June 15, 2017. The poll collected data from a total sample of n=1,501 Quebec respondents via IVR technology (automated calls).
The margin of error [moe] for this poll is estimated at ±2.5%, 19 times out of 20 (for entire sample only) around the 50%-mark.
If we compare these national numbers with the previous poll from Mainstreet Research (May 2017), the Liberal Party climbs two points from 31% to 33% (variation similar to moe), the Coalition avenir Québec loses five points from 32% to 27%, and the Parti Québécois loses two points from 24% to 22% (variation similar to moe).
You can read more information on this poll here.