President Donald Trump is on the verge of slapping new tariffs on Canada and Mexico while doubling a levy on China, moves that would dramatically expand his push to reshape the US economy, tap new revenues and upend ties with the biggest US trading partners.

Tariffs on Canadian and Mexican goods imposed by the U.S. government are expected to take hold tomorrow, marking the start of a North American trade war.

President Donald Trump plans to impose tariffs on Canada and Mexico starting Tuesday, in addition to doubling the 10% universal tariff