The US Department of Commerce has ruled against aerospace firm Bombardier in its dispute with rival Boeing. An interim tariff of 219.63% has been proposed on the import of Bombardier's C-Series jet to the US. The government and trade unions fear the ruling may make Bombardier question remaining in Northern Ireland, where it employs 4,100 people in four locations. Our business editor Simon Jack reports and director of public affairs at Bombardier Belfast Haley Dunne and DUP MP and chief whip Sir Jeffrey Donaldson discuss the possible implications the ruling might have on the UK economy and its relationship with the US. (Image: Bombardier Aerospace plant in Belfast, credit: Getty Images)