Andy Burnham is poised to become the first Labour and Co-op MP to serve as prime minister, but the transition is already testing his promise to reshape British politics. A bid to cap political donations at £1m — proposed by Labour MP Alex Sobel as an amendment to the Representation of the People Bill — has crystallised expectations that Burnham will use his first days in power to curb the influence of big money. In an email to campaigner Shaun Bowler seen by the BBC, Burnham wrote that a donation cap “would guard against the perception of any one party being unduly influenced or swayed by one person or organisation”, adding that his “gut feeling” was for a limit “somewhere in the region of £500k”. The cap would not apply to trade unions, Labour’s traditional donors, but would hit the two wealthy backers — Christopher Harborne and Ben Delo — who gave Reform UK £9.2m in the first three months of 2026 alone. Sir Keir Starmer has not supported the cap, and the bill is due to finish its Commons stages before Burnham is expected to take over on 20 July.
Rent controls are another early test. As mayor of Greater Manchester, Burnham co-signed a 2023 letter calling on the government to freeze private-sector rents, arguing it would “immediately relieve pressure on millions of people”. In a speech at the People’s History Museum last week he said “public intervention where necessary” could “kickstart the process of change”. Clara Collingwood, director of the Renters’ Reform Coalition, told Metro that rising rents “drain spending out of our high streets” and that “the government must introduce a cap on rents”. Burnham has put devolution at the heart of his plans, which could mean giving local mayors the power to cap rents rather than imposing a national policy. London Mayor Sadiq Khan’s spokesperson said the next step was for ministers “to devolve the power to cap rents”. But Housing Secretary Steve Reed, only four months ago, said he did not think “anyone sensible” would want rent controls.
“Burnham likely to become PM on July 20, facing calls for donation cap, rent controls, and gender balance in cabinet.”
Women in the cabinet are also a central concern. Harriet Harman, the party’s former deputy leader, said the number of women in Burnham’s top team was a “central issue” for female Labour MPs. Meanwhile, Labour’s internal machinery is about to turn over. General Secretary Hollie Ridley has told staff she is stepping down to allow a replacement to work alongside a new leader. The National Executive Committee will choose a successor, with names already circulating: Joe Fortune, general secretary of the Co-operative Party; Christina McAnea, former Unison head; Lehal, a former chief operating officer; Reynolds, a former No 10 liaison; and Lavelle, who ran Burnham’s by-election campaign. The appointment will be ratified at the September conference.
Burnham has also finessed his public image, wearing polo shirts, Clarks Wallabees and a navy T-shirt that Kemi Badenoch recently called “a black T-shirt” — a correction Burnham made himself. In a speech at the People’s History Museum, he said he had needed “special permission” to wear his “Manchester clothes”. But with a prime minister who has not won a general election preparing to enact Starmer’s mandate, the question remains: will he seek his own?