WASHINGTON — President Donald Trump said Canadian planemaker Bombardier should stop selling jets in the United States unless it builds them there, a threat issued hours before Ottawa's retaliatory tariffs on American goods took effect and without an accompanying executive order or tariff schedule.

"NO MORE SELLING BOMBARDIER IN THE UNITED STATES!" Trump wrote on Truth Social on Monday. "Their products aren't good enough! Over 50% of their revenue comes from the United States — They live off American Buyers, American Companies, American Airports, and American Service — All while Canada blocks our GREAT American Banks, and Companies, throughout the U.S.A." He added: "If they want our Market, they must build here, and stop treating America like a 'piggybank.'" The post closed with a string of slogans: "BUY AMERICAN. FLY ON AMERICAN AIRLINES. ENJOY AMERICAN LIQUOR AND BEVERAGES. SAIL ON LAKE AMERICA. AMERICA FIRST!"

The White House did not immediately describe how a sales ban would work. Civil aircraft already flying in the United States are certified by the Federal Aviation Administration on safety grounds, not by presidential social-media posts. No new duty on Bombardier airframes was published with the message. The gap between the all-caps line and a legal instrument is the first fact of the story.

The second is timing. Canada's counter-tariffs — 15% to 50% on hundreds of U.S. products, framed in Ottawa as a dollar-for-dollar answer to earlier U.S. levies — were set for 12:01 a.m. Tuesday. Prime Minister Mark Carney told CBC News there were no last-minute calls scheduled with Trump and no deal to announce. Talks had collapsed late last month. Trump's Bombardier post landed in that vacuum.

Bombardier answered........

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