Detroit despairs as ‘insanity’ of Trump’s Canada trade war punishes city

Unpopular new policy comes as midterms loom and control of Congress could be decided by several Michigan races

Every day $1bn worth of goods crosses the river dividing Detroit, Michigan, and Windsor, Ontario, two largely blue-collar US and Canadian cities that have come to act as one in the creation of North America's auto industry.

News this week of Donald Trump's escalating trade spat with Canada has everyone worried. Political and economic leaders and observers labeled the move an act of hubris" , blamed Trump's ego", and called the escalation insanity".