"Liberal poll numbers climb over NDP as leadership starts." A few quick thoughts...
I looked at the dates over which this poll was conducted, first: "The telephone survey of 1,000 Canadians was conducted between Oct.4-11 and is considered accurate within plus or minus 3.1 percentage points, 19 times out of 20." OK, right in the wheelhouse of the aftermath of Trudeau's announcement, which was on October 1st. Followed by an avalanche of coverage. It means that Canadians at that time were heavily exposed to the prospects of the Liberal leadership race, Trudeau, yes, and likely had a thought or two swirling around about the state of political leadership in the country.
This poll also occurred at the height of this latest tainted meat episode and I wouldn't discount that factor either as an influence on people's political choices at the moment. Anything but Conservative could be a factor.
While I am very hesitant with any poll these days, my impression is that this is just one of many you will see showing the three main parties all in the same ballpark. Even when other pollsters have Liberals in third spot, the distance among the parties is never so great that it couldn't be overcome in an election campaign given the fluidity these days. So it means something, but whether anyone should write these numbers down as delivered by Nanos today as some kind of gospel, probably not.
It should, however, tell those who would peddle silly existential questions about the Liberal party that they should think about getting a new hobby.