In 2013 she sought selection to be the Labour Party's
prospective parliamentary candidate for
Manchester Withington. However,
Jeff Smith was selected and has been the incumbent since 2015. In September 2014 Rayner was selected as the
Labour Party's
prospective parliamentary candidate for
Ashton-under-Lyne. She was elected as MP for Ashton-under-Lyne at the
2015 general election with 48.1% of the vote and a majority of 10,756 votes. She made her maiden speech in the
House of Commons on 2 June 2015. At the
2017 general election, Rayner was re-elected as MP for Ashton-under-Lyne with an increased vote share of 60.4% and an increased majority of 11,295 votes. At the
2019 general election Rayner was re-elected as MP for Ashton-under-Lyne with a decreased vote share of 48.1% and a decreased majority of 4,263. At the
2024 general election Rayner was re-elected as MP for Ashton-under-Lyne with a decreased vote share of 43.9% and an increased majority of 6,791. Rayner nominated
Andy Burnham in the
2015 Labour leadership election, but was one of just 18 MPs to back the incumbent
Jeremy Corbyn against
Owen Smith in the
2016 leadership election.
Shadow minister (2016–2024) On 1 July 2016, after
a series of resignations from the shadow cabinet in protest at his leadership, Corbyn appointed Rayner as
Shadow Secretary of State for Education. She supported the notion of a '
National Education Service' to be modelled along similar lines to the
National Health Service (NHS), also promoting an increase in funding for early years education. She was considered by some as a possible future
Labour leader.
Deputy Labour leader (2020–2025) hustings in
BristolRayner did not stand for the Labour leadership in the
2020 leadership election, and supported
Rebecca Long-Bailey, who came second to
Keir Starmer. However, Rayner stood for the
deputy leadership in the
2020 deputy leadership election. She achieved sufficient support from affiliates to qualify for the final ballot on 20 January, at which point she also had the greatest number of nominations from CLPs. The results were announced on 4 April 2020, with Rayner announced as the winner and becoming deputy leader, succeeding
Tom Watson. In the days following she was appointed
Deputy Leader of the Opposition,
Shadow First Secretary of State and
Chair of the Labour Party. Rayner was appointed to the
Privy Council on 12 February 2021. On 9 April 2020 the Labour Party announced that Rayner would deputise for Starmer opposite
Dominic Raab during
Prime Minister's Questions. She deputised opposite Raab during
Boris Johnson and
Rishi Sunak's premierships, and also deputised opposite
Oliver Dowden during the Sunak premiership. Rayner was removed from her roles as the Labour Party's chair and national campaign coordinator in a
reshuffle by Starmer on 8 May 2021, following the
2021 local elections. She was subsequently appointed
Shadow Chancellor of the Duchy of Lancaster and Shadow Secretary of State for the Future of Work. On 4 September 2023 Starmer appointed Rayner as shadow levelling up secretary, and shadow deputy prime minister. Rayner's strong support base and potential as a future leader led to the
New Statesman ranking her as the eighth most powerful person in British left-wing politics for 2023. On 5 September 2025, Rayner resigned as the deputy leader and from her ministerial position and as the deputy prime minister following the prime minister's ethics adviser,
Laurie Magnus, finding that she had breached the
ministerial code in relation to her failure to pay the correct amount of tax on one of her properties. Rayner condemned the
late July and early August riots that started following the
Southport stabbing, saying there is "no excuse for thuggery." In her first speech at the
Labour Party Conference as Deputy Prime Minister, Rayner opened the conference and said "I want to start off with a thanks to the British people. You entrusted us with the task of change and we will not forget it. You kept faith with us and we will keep faith with you." As Deputy Prime Minister, Rayner has deputised for Starmer at Prime Minister's Questions on four occasions, respectively facing Oliver Dowden,
Alex Burghart,
Chris Philp and
Mel Stride, jokingly saying during the former she would miss her and Dowden's "battle of the gingers". In July 2025, her membership of
Unite, one of the largest trade unions in the UK, was suspended during an escalating dispute with the Starmer government over their role in
bin strikes in Birmingham, with media speculation focussing on a possible disaffiliation of the union from the Labour Party. However Rayner has insisted that she was not a member of Unite at that time. On 5 September 2025, Rayner resigned from her ministerial position and as the deputy prime minister, and as deputy leader of the party, following the prime minister's ethics adviser,
Laurie Magnus, finding that she had breached the
ministerial code in relation to her failure to pay the correct amount of tax on one of her properties. This resignation triggered the
2025 British cabinet reshuffle and the
2025 Labour Party deputy leadership election, where she was succeeded by
Lucy Powell.
Return to the backbenches (2025–) In early February 2026, reports emerged that Rayner had privately warned Starmer against appointing
Peter Mandelson as British Ambassador to the United States. Rayner's allies stated that she advised against the move in 2024, citing public evidence of Mandelson's continued
friendship with
Jeffrey Epstein following the financier's 2008 conviction for child sex offences. Rayner's intervention reportedly highlighted the potential for the appointment to become a significant political liability, a warning that gained renewed attention after Mandelson was sacked from the role in September 2025 following fresh revelations about his ties to Epstein. Publicly, Rayner has taken a more active role in the unfolding scandal by leading a backbench push for greater transparency. During a House of Commons debate, she questioned the government's plan for disclosing vetting documents, asking if the Intelligence and Security Committee (ISC) should oversee the process to maintain "public confidence". Her stance effectively forced the government into a U-turn, ensuring that cross-party parliamentarians—rather than just the Cabinet Office—would determine which sensitive documents are released to the public. While Rayner did resign as DPM in late 2025 (following an ethics investigation into her personal tax affairs), her recent actions have been interpreted by political observers as a signal of her leadership ambitions. Following a vote on the Mandelson files, she reportedly told colleagues, "I will be ready", amid mounting pressure questioning Starmer's judgment and position as PM. Her comments and parliamentary manoeuvres have contributed to an increasingly difficult environment for Starmer, who has apologised for believing Mandelson's initial claims that he "barely knew" Epstein. Rayner supported
Andy Burnham's bid to stand as the Labour candidate in the
2026 Gorton and Denton by-election. After his candidacy was blocked by the party's
National Executive Committee (NEC) and the by-election was subsequently won by
Green Party candidate
Hannah Spencer, Rayner said, "This result must be a wake up call. It’s time to really listen – and to reflect." On 17 March 2026, Rayner made a speech highly critical of the government. The speech was made at the Spring Rally of the
Mainstream group of
Andy Burnham. At the event held in
London, she lined out her opposition to the present policies of
Keir Starmer. She warned that government proposals on changes to
Indefinite leave to remain are "un-British" and a "breach of trust". She also warned Labour is "running out of time" to deliver the change promised in the general election. This speech reportedly hinted at possible leadership ambitions. ==Political positions==