Trump: Our Country Has Been Taken Advantage Of By Canada, Tougher To Deal With Than China

Reporting cited here

1. documented

   Answering questions about Canadian trade talks on September 2, Trump described Canada as the toughest country to deal with, contrasting it with China and Vietnam.

   September 2 video and accompanying transcript excerpt

   Trump describes Canada as his toughest trade counterpart · Recorded White House remarks on Canadian trade talks