Automakers and parts suppliers would struggle if President-elect Donald J. Trump followed through on his threat to impose 25 percent tariffs on imports from Canada and Mexico.

General Motors, Ford and Stellantis shares slid Tuesday after President-elect Trump threatened 25% tariffs on all imports from Canada and Mexico. The move by the new administration would likely stop American car demand in its tracks,

Fox News National Correspondent Bryan Llenas and Former Speaker of the House Kevin McCarthy join ‘America’s Newsroom’ to discuss President-elect Donald Trump’s vow to add tariffs on imports from Mexico,