US president threatened a 50 per cent tariff on Canada if it did not certify a number of Gulfstream fighter jets The latest headlines from our reporters across the US sent straight to your inbox each weekday Your briefing on the latest headlines from across the US Your briefing on the latest headlines from across the US Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Mark Carney is facing calls to cancel contracts to