The margin of error for an online sample is not applicable. For comparison purposes, a random sample of this size would yield a margin of error [moe] of ±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 Léger (July 2020), the Liberal Party is up one point (variation smaller than moe), the Conservative Party climbs two points from 26% to 28% (variation similar to moe), and the New Democratic Party loses two points from 19% to 17% (variation similar to moe).

You can read more information on this poll here.