Aston Martin has blamed Donald Trump’s tariffs for a profit warning, as the carmaker urged the UK government to offer more “proactive support”.The company, which manufactures its cars in factories in Warwickshire and south Wales, downgraded its profit outlook on Monday for the second time this year. It said that it now expects to make a larger loss than the £110m loss that was the lower end of its profit forecasts.The carmaker hit out at the UK government, telling investors that while it was engaged with of ...