Canada's retaliatory tariffs set to hit US products as Trump warns of escalation

Retaliatory tariffs issued by Canada are set to hit some imports from the United States soon after midnight on Tuesday, intensifying a trade war between the longtime allies and risking an escalation from President Donald Trump.Levies as high as 50% will be applied to hundreds of U.S. products, ranging from aluminum foil to raincoats to cheese. U.S. elected officials in states bordering Canada, including Republican Sen. Susan Collins of Maine, have warned the trade dispute will hurt local businesses and consumers.