He worked as deputy head of the Number 10 Policy Unit for David Cameron and served as a vice-president of the Jewish Leadership Council.
[8][9] In 2012, he was appointed as a strategic adviser to Catherine Ashton, then working as High Representative of the European Union for Foreign Affairs and Security Policy.
[6] In 2013, his proposal to charge foreign students to attend state schools in the UK was rejected after criticism by government departments and the Liberal Democrats.
[16] Also in 2015, Korski developed proposals to end the use of cash in the UK by 2020 "to drive up productivity and disrupt some forms of criminal activity", which the chancellor of the Exchequer George Osborne rejected.
[18][19][20] Korski was accused by the anti-EU politician Bernard Jenkin of breaking the code of conduct for special advisers over tweets in support of remaining in the European Union.
[23] He advertised connection to "GovStart speakers" including special advisers to ministers, some of whom were removed from listings after BuzzFeed News made inquiries about Cabinet Office clearance.
[23] Initially, he selected ten companies and projects to "explore which public services to target and build up contacts in the relevant areas" for six months.
He proposed implementing a levy on hotel stays to fund new police programmes and supported road pricing as an alternative to expansion of London's Ultra Low Emission Zone.
[28] Korski is married to Fiona Mcilwham, who served as ambassador to Albania from 2009 to 2012 and was appointed as private secretary to Prince Harry and Meghan, Duchess of Sussex in 2019.
[31] He was appointed a Commander of the Order of British Empire (CBE) in 2016 as part of David Cameron's Resignation Honours, for "political and public service.
[34] The alleged incident occurred in the Thatcher Drawing Room where the pair had just finished discussing Goodwin's proposal to make a TV documentary about the Cameron government's work to support British businesses in the export market.
[34] While The Daily Telegraph had previously named Korski in a 2017 article relating to the widely discussed allegation, Goodwin had never publicly identified a perpetrator.