She supported Liz Truss in her successful campaign to become Prime Minister in September 2022 and subsequently became Parliamentary Under-Secretary of State for Levelling Up, a role she retained under Rishi Sunak.

[8] Three years later, she represented the family at a criminal injuries compensation tribunal and has commented in interviews that the experience fostered her interest in politics.

During her time at the university, she spent a year working as a parliamentary aide for Jacob Rees-Mogg, the MP for North East Somerset.

[15][16] In the same year, Davison was the Conservative candidate for the Kings Park ward in the Hull City Council election, where she finished last.

[18] In her late teens and early twenties, while she was a student, Davison had a variety of jobs, including working in a video games retailer, a casino, a betting shop, and a branch of Pizza Hut.

[33] In that month, she voiced her support for scrapping the planned high-speed railway project HS2, and re-investing the money into local transport schemes.

"[43][44] In February 2021, Davison created the All-Party Parliamentary Group (APPG) for One-Punch Assaults and served as its chair till September 2022.

[45][46] She launched the Free Market Forum, a group of Conservative MPs advocating classical liberalism that is affiliated with the Institute of Economic Affairs think tank with Greg Smith in April 2021.

[59] Truss became Prime Minister on 6 September 2022 and Davison was appointed as Parliamentary Under Secretary of State at the Department for Levelling Up, Housing and Communities two days later.

Rishi Sunak succeeded Truss as a result of the October 2022 Conservative Party leadership election and Davison retained her role.

[38][60][61] On 25 November 2022, Davison announced that she would not seek re-election as an MP at the next general election citing the need to have a "life outside of politics" and support her family.

[71][72] Since 2022, she has been in a relationship with diplomat Tony Kay, the head of the Arabian Peninsula department at the Foreign, Commonwealth and Development Office.

[23][73][74] Kay is to become the deputy British Ambassador to Brazil in the summer of 2024 and Davison had spoken about joining him there when her term as MP ended.

[77] As part of Mental Health Awareness Week 2019, Davison discussed her personal experience of depression and suicidal ideation while working in London as a parliamentary aide, after her grandmother had been diagnosed with, and subsequently died of lung cancer.