Heaton-Harris was reported as being one of the Conservative MPs to have spoken critically of Party Co-Chairman Sayeeda Warsi at a meeting of the 1922 Committee, following Warsi's handling of Roger Helmer MEP's defection to UKIP. Ministerial Career Heaton-Harris was a whip in Theresa May's government from 2017 to 2018. He served as Deputy Leader of the House of Commons and Comptroller of the Household from January to June 2018. He was a Brexit Minister from 2018 to 2019, before resigning to support Andrea Leadsom's second Conservative leadership bid, which she lost to Boris Johnson. On 25 July 2019, he was appointed by Johnson as the Minister of State for Transport. He was appointed Minister of State for Europe on 19 December 2021 when ministerial responsibility for Europe was transferred out of the Cabinet Office and to the Foreign Office. In February 2022, he was appointed by Johnson as Chief Whip of the Conservative Party. Following Liz Truss's appointment as Prime Minister in September 2022, he was promoted to Secretary of State for Northern Ireland. On 8 September he made his first visit to Northern Ireland. Heaton-Harris was appointed Vice-Chamberlain of the Household, a whips office sinecure on 15 July 2017. He was promoted to Leader of the House of Commons and Comptroller of the Household on 9 January 2018. After the resignation of Boris Johnson and the following domino resignations of Conservative ministers, on 9 July 2018 Heaton-Harris was appointed as one of three Parliamentary Under-Secretaries of State at the Department for Exiting the European Union. On 8 February 2022, he was appointed as Chief Whip of the Conservative Party. He was subsequently sworn into the Privy Council of the United Kingdom. Hospitality Heaton-Harris accepted tickets for himself and his family to attend four events at the London 2012 Olympics relating to swimming, diving, gymnastics, and the closing ceremony, as a gift from Coca-Cola. The value of the gifts (£11,750) was the highest amount received by any MP. He declared them in the Register of Members' Interests. Heaton-Harris was one of several MPs, including Labour's shadow whip Mark Tami, who received tickets worth £1,961 to the England v Germany game at the 2020 UEFA European Football Championship from Power Leisure Bookmakers. Climate change In November 2012, covert video footage of Heaton-Harris discussing the role of James Delingpole in the Corby by-election were published on the website of The Guardian.