The CBC Election Pollcast, hosted by CBC poll analyst and ThreeHundredEight.com founder Éric Grenier, explores the world of political polls, their influence on the media and the trends they are showing.

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Mario Canseco, vice-president, public affairs at Insights West, joins Eric Grenier on the Election Pollcast podcast this week. (CBC)

Joining Éric this week is Mario Canseco, vice-president, public affairs at Insights West. The B.C.-based polling firm's newest poll shows the New Democrats leading in British Columbia, with the Conservatives on track for one of their worst results in the province.

How strong is the NDP's support base? Can the Liberals breakthrough? And what about the Greens and their impressive numbers on Vancouver Island? Listen to the podcast below.