Business leaders in Windsor-Essex are bracing for painful economic fallout if U.S. President Donald Trump goes through with 25 per cent tariffs on all Canadian goods this week. 

The wide-reaching tariffs, which Trump said Monday were set to hit Canada and Mexico on Tuesday, would be particularly painful for southwestern Ontario's large automotive, manufacturing, and agricultural industries because of their reliance on cross-border trade. 

"If this does actually come into force tomorrow globally a…