Trump's tariffs will put post-Brexit trade policy to the test

With Donald Trump’s inauguration imminent, there are questions over the potential consequences of one of his signature policies: tariffs. While during the first Trump administration the UK wasn’t too affected by the imposition of US import tariffs, a potential geopolitical escalation of a tariff war could have serious consequences for a British economy forced to choose between the EU and the US, writes Adam Butlin.