The ability to threaten trade barriers gives him a vast source of leverage against any country that incurs his disapproval ...

U.S. President Donald Trump's "America First" changes to foreign policy could have drastic consequences for Canada's approach ...

In a particularly cryptic message to the European Union, where trade accounts for more than a fifth of its Gross Domestic ...

Oil futures finished higher Thursday as traders continued to weigh the possibility that President Donald Trump will implement tariffs on Canada and Mexico.