President Donald Trump on Thursday said he is decertifying all aircraft made in Canada as retaliation against the country for not certifying jets from Georgia-based Gulfstream Aerospace.

Canadian officials said they were working to resolve a dispute with U.S. President Donald Trump over private jet approvals, after his threats to decertify ‌and slap tariffs on Canada-made aircraft sen...

In Trump’s latest threat, the Republican president said he was retaliating against Canada for refusing to certify jets from Savannah, Georgia-based Gulfstream Aerospace.