WASHINGTON Donald Trump 's tariff threats have rattled foreign businesses and governments, with many fearing it could signal the opening salvo of an all-out trade war when he returns to the White House next year. The president-elect on Nov. 25 placed both allies and rivals on notice, vowing to quickly slap an across-the-board tariff of 25 percent on Canada and Mexico, and add a 10 percent tariff on China. Following through on that threat, or his campaign promise of a 10 percent levy on all U.S.

Tag-uri: Donald Trump