The U.S. president pulled the plug on monthslong negotiations over what he called an “egregious” digital-services tax on U.S. tech companies, plunging relations with America’s second-largest trading partner back into turmoil.

The president posted on Truth Social that Canada had planned to put a tax on U.S. technology companies, calling the move "a blatant attack."

The president said he would cease negotiations and impose new tariffs because of Canada’s imminent, new digital services taxes.