Among Keir Starmer’s closest associates has been appointed as Rachel Reeves’s chief of staff, aiming to further strengthen ties between the Prime Minister's office and the Treasury, according to insiders.
Ben Nunn, who collaborated with the prime minister in opposition and is a key strategist, will assume his duties starting immediately.
He was previously the finance minister's media special adviser and had been deeply engaged in planning for the financial statement later this month, in which the chancellor is anticipated to put up personal taxation, contrary to a Labour manifesto promise.
Those plans are understood to have been approved by the budget board, a group of advisers from throughout Downing Street and the Treasury who meet regularly to discuss the chancellor’s options.
In his new role, Nunn, 38, will serve a vital function linking the two operations, having worked closely with both top leaders, becoming one of Starmer’s few trusted allies at Westminster.
“Ben is widely esteemed across government and this appointment is a reflection of that. As top aide, he’ll be the link between No 10 and No 11 and a trusted advisor to the prime minister.”
Nunn is reported to have held discussions with the PM and the chancellor during the fall about assuming a higher position in the administration. At one point the possibilities encompassed a post in No 10. He will work now closely with Starmer and his senior aide, Morgan McSweeney, as well as the chancellor.
Party sources believe he will build on the improved cooperative relationship between No 10 and the Treasury to focus on the domestic economy as an issue within Downing Street, and also prevent controversial policy moves like last year’s reduction in heating benefits.
Katie Martin, who held the chief of staff role for almost five years, will assume a different position in the Treasury centered around repairing the government’s frayed ties with business.
Reeves stated: “Katie Martin has been my key counselor for almost half a decade and I’m pleased she will remain by my side in government, playing a central role as my corporate advisor. The party won the election last year largely because of her leadership and commitment.
“Ben has been a crucial player in the party and this administration over the past decade. His foresight, knowledge and strategic thinking will be essential as we continue to focus on laying a solid groundwork to reduce health service delays, lower public borrowing and cut the cost of living.”
Martin will continue as a advisor until the year's conclusion before starting her new role as the finance minister's corporate counselor in the new year.