Lord Darroch’s diplomatic career has spanned four decades where he has served as Head of the Cabinet Office European Secretariat and the Prime Ministers Advisor on European affairs from 2004-2007 and four years as British Permanent Representative to the European Union. He was National Security Advisor from 2012-2015 before taking on the UK’s foremost diplomatic post as the British Ambassador to the USA from 2016 until 2019. He became Chairperson of internationalist campaign group Best for Britain in 2021.