And as for the claims that Mulcair is suddenly awaking up to TPP due to failing poll numbers, it's nonsense. There was the speech in August that he gave, and there were discussions in September that touched upon his concerns of protecting supply management and of the effect on auto manufacturing. See below:
http://www.theglobeandmail.com/news/politics/mulcair-takes-aim-at-pacifi...
They have not been as loud on TPP nor on CETA as they have been on senate abolition suggesting it is a far less important issue.
But the NDP have certainly been louder and more decisive than the Liberals. Seems wise to go for the best option in this election.