Donald Trump’s threat to decertify Bombardier jets nothing more than sour grapes: expert Toronto StarWas Mark Carney’s Davos speech a mistake if it upset Trump? CBCCan Trump decertify aircraft? What experts say amid Bombardier threat Global NewsIf free trade dies, what happens to Canada? The Globe and MailTrump threatens Canada with aircraft tariffs, decertification over Gulfstream approvals Reuters
