This live blog is now closed.US supreme court rules Trump can proceed with crackdown on mail-in votingSign up for the US Breaking News emailDonald Trump has threatened to increase tariffs on Canadian cars, trucks, auto parts and steel to 50% today, after trade negotiations between Washington and Ottowa broke down last week.On Truth Social, the president blasted Canada, and said the new duties will go into effect on 1 January 2027. Continue reading...