President Donald Trump has made another tariff threat directed at Canada, which he accuses of refusing to certify jets made by U.S. aerospace company Gulfstream. In a Truth Social post on Thursday, Trump threatened to impose an additional 50% tariff on Canada if it does not reverse course. The president also indicated the United States would decertify Canadian aircraft until the American-made jets are certified. GOVERNMENT LAUNCHES $1000 BABY BONUS“Further, Canada is effectively prohibiting the sale of Gulfstream products in Canada through this very same certification process,” he added. Carney then fired back, claiming Canada does not need to fully rely on the U.S.“Canada doesn’t live because of the United States.