President Donald Trump late Thursday threatened a 35% tariff on goods imported from Canada, a dramatic escalation in an on-again, off-again trade war with America’s northern neighbor and one of its most important trading partners.

The pause on the biggest of Trump's tariffs won't end this week, but the president continues to pledge steep new duties against major countries.

President Trump ended trade talks with Canada over its new Digital Services Tax. The decision could trigger new tariffs on Canadian goods, raising concerns about higher prices and increased tensions between the two countries.

President Trump’s ever-swerving tariff regime has taken more sharp turns in recent days.On July 7, his administration pushed back some of its most punishing duties by three more weeks to August, following a 90-day delay.

President Trump has announced — but postponed the effective date for — higher tariffs once again. Here's what to know about the latest on his tariff policy.