Eric Grenier notes an interesting distinction made in the latest polling data from Ekos.
This is the first publicly released report of federal vote intentions from EKOS since the May 2011 election, and the poll shows a much closer race between the Conservatives and the New Democrats than we’ve seen elsewhere. The Conservatives finished with 31.4% support in this survey, compared to 29.5% for the New Democrats and 24.8% for the Liberals … But EKOS also filtered these numbers out according to who voted in the May 2011 election, weighing them accordingly. With those weightings, EKOS pegs Conservative support at 36.7%, with the NDP at 27.8% and the Liberals at 21.9%.
That is quite a big difference between the voting intentions of the general population and the voting population. It does not surprise me that there would be a disparity, though this is larger than I would have expected.