At the end of the day, none of these pipelines are going to get built anytime soon, regardless of what Trudeau/the Liberals (and the NEB) have to say about it

PM Harper (and his constituency/base/Alberta) spent 9 years pushing for pipelines, how many have been started, completed, in progress? Not many...........

Trudeau who's "base" is FAR less enthusiastic (to say the least) about pipelines knows very well that the the First Nations, the environmental lobby, the Supreme Court and BC/Quebec public opinion  is solid block that is, has been and will be working against any and all pipelines. That is reality on the "ground" 

There is a VERY simple solution; offer BC/ON/QC billions of dollars per year in in royalties for "land-use", and watch them jump. It is really as simple as that. The respective governments will huff and puff, announce how this $$$$ will go to environmental projects, pocket the $$$$........................never to be heard from again.

Works every time. Sad but true.