Canada to blame for Washington’s escalation of trade war, says Trump trade czar  CTV NewsLive updates: Canada to blame for Washington’s escalation of trade war, Greer says  The Globe and MailCanada to blame for Washington’s escalation of trade war, says Trump trade czar  Toronto StarTrump trade chief reveals what preceded Canada walking away from ‘best deal in the world’  Fox NewsUSTR’s Greer huddles with House Republicans amid Trump trade spats  CNBC