Boris Johnson says ethics adviser resigned over steel tariffs row

Prime minister asked for view on whether move would break obligations to World Trade OrganizationBoris Johnson has suggested his ethics adviser resigned in a row over protection for the British steel industry, after being asked for a view about potentially breaking the UK’s obligations to the World Trade Organization.In his letter responding to Christoper Geidt’s resignation, the prime minister said he wanted advice on the use of tariffs for “protecting a crucial industry&rdquo