She has served as the Chair of the Health and Social Care Select Committee since September 2024, and has been Member of Parliament (MP) for Oxford West and Abingdon since 2017.

On 31 August 2020, Davey appointed Moran as the Liberal Democrats' shadow foreign secretary, and international development spokesperson the following day, she served in these roles until her election as Chair of the Health and Social Care Select Committee.

[12] As her father was a diplomat for the European Union, Moran grew up in various countries, including Belgium, Greece, Ethiopia, Jamaica and Jordan.

[20] Moran contested Oxford West and Abingdon at the 2015 general election, coming second with 28.9% of the vote behind the incumbent Conservative MP Nicola Blackwood.

[22][23][24] Moran became the first UK Member of Parliament of Palestinian descent and the first female Liberal Democrat MP from an ethnic minority background.

[25] In June 2017, Moran was named Liberal Democrat spokesperson for education, science and young people in the House of Commons.

[26] That month she used her maiden speech to call for fairer funding for schools, and in July 2017 she spoke out against the closure of all the Sure Start children's centres in Oxfordshire earlier in the year.

[27][28][29] Also in July 2017, Moran was jeered at for accusing the Conservatives of underfunding a new scheme to provide 30 hours of free child care for the children of working parents.

[40] She argues that to tackle institutional racism in society students must be taught of Britain's colonial past and the injustices that took place within it.

In 2021, Moran was one of three MPs who successfully took legal action against the Department of Health and Social Care over contracts awarded during the COVID-19 pandemic.

[58] In February 2022, she used the cover of Parliamentary privilege to name the Navalny 35, Russian oligarchs who, as allies of Vladimir Putin, should have sanctions imposed on them.

[63] In 2023, she urged voters to vote tactically for the Green Party in order to block increases in housing supply in her constituency.

[63] In an interview with The Times, Moran stated that she suffered from depression when she was a student and attributed it to a negative self-image resulting from the social stigma of obesity.

[64][66] In 2013, Moran and her then-boyfriend, Richard Davis, were briefly questioned by police after she slapped him during an argument in their hotel room at the Liberal Democrat Federal Conference.