“immediately employ every tool available". Get out the grannies with their purses and fuzzy sweater types. That'll do it. 

Why don't these two actually say what they are going to do to stop this approved pipeline? Change the Canadian constitution? Their only real hope is to somehow prove in court that FN consultation was inadequate. But this is very unlikely given most FNs along the route are signed on. There is no "veto" power for individual FNs, despite some of them dreaming there is. 

All they are really doing is throwing a huge rift between BC and Alberta and the Federal government.  All to satisfy some self-centered, hypocritical, nimbyists in the tiny SW corner of Canada. What goes around comes around Horgan and Weaver. Your think Trump is a pariah? Maybe look in the mirror.