U .S. stocks tumbled in early trading on Friday, just hours after President Donald Trump signed an executive order slapping new tariffs on dozens of countries. A weak jobs report worsened investor jitters, revealing a slowdown of hiring over recent months as Trump's previous tariffs took hold.

Forcing already cautious consumers to deal with higher prices as the job market weakens is a dangerous economic mix.

Trump's new tariff rates include a 35% duty on many goods from Canada, which PM Mark Carney says he's "disappointed" about.