Trump specifically said he was decertifying the global express business jet from Quebec-based Bombardier. “Canada is effectively prohibiting the sale of Gulfstream products in Canada through this very same certification process,” Trump wrote on Truth Social. Just hours earlier, Canadian Prime Minister Mark Carney said he expects Trump to “respect Canadian sovereignty” after reports that Alberta separatists met with US officials. And a few days earlier, Trump threatened a 100% tariff on America’s second-biggest trading partner if it struck a trade deal with China. It is unclear whether Trump has the legal authority to decertify aircraft; the White House has not released an executive order on any Canadian aircraft tariffs.