Korski worked as an adviser to the
Conservative MP
Andrew Mitchell. He later served as deputy head of the
Number 10 Policy Unit for the Conservative prime minister
David Cameron from 2013 to 2016. In 2015, he was criticised for putting pressure on the
Greater London Authority over proposed restrictions to
Uber, with Korski and Cameron opposed to proposed regulations that would limit the company. He described proposed restrictions as "insane and luddite". He met with Uber executives on several occasions, at
10 Downing Street, at their headquarters in California and at a private dinner. The
Information Commissioner's Office investigated why 10 Downing Street had denied that Korski's correspondence with
City Hall existed. 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. During the
2016 United Kingdom European Union membership referendum, Korski helped run the
Stronger in campaign supporting the UK remaining in the European Union. 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. He "left frontline politics" in 2016. He said the business would provide support and advice about the public sector but not engage in lobbying. 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. In 2019, Korski was appointed to a panel advising the trade secretary
Liz Truss about
freeport proposals. He worked on the
Tom Tugendhat July–September 2022 Conservative Party leadership election campaign. Korski applied to be the Conservative Party's candidate in the
2024 London mayoral election. 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. == Personal life ==