What to know as President Donald Trump imposes steep new tariffs on imports from Canada, Mexico and China, prompting ...

Stocks in the US dropped Monday morning, following European and Asian markets lower as investors digested Trump's tariff ...

Quantum-computing stocks are lower, and although they’re small and not making much money, an escalating trade war could ...

Ontario, Canada has banned US firms from government contracts, affecting a $100-million deal with Elon Musk's Starlink.

Canada and Mexico ordered retaliatory tariffs on American goods in response to sweeping tariffs imposed by President Donald ...

Ahead of tariffs starting Tuesday, President Donald Trump posted on social media that he spoke Monday morning with Canadian ...

NBC News' Brain Cheung and Gabe Gutierrez report on the impacts and reaction to President Trump's tariffs on Canada, Mexico and China and the president's talks with other nation's leaders.

Trump says Chinese fentanyl is meandering through Canada and Mexico before entering the U.S. at our northern and southern borders. The way to get those countries to enforce their borders more strictly ...

President Donald Trump said he spoke with Canadian Prime Minister Justin Trudeau Monday morning as fallout continues from ...

US president says two ‘national emergency’ issues will be solved by sweeping tariffs inflicted on America’s three largest ...

Global stocks are tumbling after President Donald Trump imposed 25% tariffs on most imports from Canada and Mexico and 10% on ...

Trump's wide-ranging tariffs on Mexico, Canada and China divided lawmakers and world leaders over the weekend. President ...