Trump attacks the plane maker again, accusing Canada of unfair practices and threatening to block sales in the U.S. Trump said Monday in a social media post. “If they want our market, they need to build here and stop treating the United States like a ‘piggy bank.'” Trump has imposed a series of tariffs on Canadian products, prompting retaliatory actions. The retaliatory tariffs will go into effect early Tuesday. The tariffs come as negotiations between the United States and Canada have deteriorated in recent weeks. Canada’s tariffs will cover nearly $20 billion worth of 700 different American products. This is not the first time the US president has attacked Bombardier since returning to office in 2025. Shares of Canadian planemaker Bombardier plummeted in January after Trump threatened to decertify the private jet maker’s large-cabin jets and impose 50 percent import tariffs on new planes until Canada certified the last plane produced by US rival Gulfstream. “More than 50% of their income comes from the United States — they live off of American buyers, American businesses, American airports, and American services,” Trump said Monday. “Canada blocks our BIG American banks and companies throughout the United States. They even blocked Gulfstream Aerospace from doing business in Canada. Completely unfair and unfair! That era is OVER!” The move will hit large private jet companies, including NetJets, one of Bombardier’s biggest buyers. In December 2023, the Columbus, Ohio-based company signed an agreement with Bombardier to purchase 12 Challenger 3500 aircraft directly, with Bombardier giving NetJets the option to purchase up to another 232 aircraft later. Bombardier did not respond to Al Jazeera’s request for comment.