The latest nightly tracking by Nanos Research for CTV News and The Globe and Mail shows the Liberals and the Conservatives are the top choices for Canadians, while the proportion of Canadians who would consider voting for the NDP has dropped nine points over the past month.

With the announcement of a tentative deal on the Trans Pacific Partnership landing at the tail end of a marathon federal election campaign, voters can expect the party leaders to use it as a wedge issue, says one polling expert.

Canadians have one of the highest rates of cannabis use in the world, and a relaxation of marijuana laws is now an election issue. So, is cannabis really 'infinitely worse' than tobacco, as Conservative Leader Stephen Harper has claimed?

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