The leadership contest for the Labour Party is intensifying as Andy Burnham prepares to return to Westminster and potentially challenge Keir Starmer for the position of prime minister. Central to the debate is the question of who Burnham would appoint as chancellor, with significant divisions emerging over the suitability of Ed Miliband for the role.

Sharon Graham, general secretary of Unite—the UK’s largest trade union with over 1.1 million members—has publicly warned Burnham against appointing Miliband as chancellor. Graham expressed concerns that Miliband’s strong commitment to urgent net zero climate policies risks undermining job creation across key industrial sectors. She criticized Miliband’s record as secretary for energy and climate change, citing his reluctance to approve new oil and gas development in the North Sea and his resistance to softening government targets for electric vehicle sales by 2030. According to Graham, these stances could threaten thousands of existing jobs and prevent adequate support for workers affected by the transition to green industries.

Graham also urged Burnham to reconsider opposition to a third runway at Heathrow Airport and to endorse renewed North Sea drilling, framing such measures as essential for fostering skilled, well-paid employment and boosting national economic growth. She dismissed Miliband as insufficiently “pro-worker” and argued that appointing him to the Treasury would be “a noose around the neck” of efforts to protect and create jobs, particularly in Britain’s industrial regions.

Supporters of Miliband within the Labour Party emphasize his economic experience, including his background in economics and prior work around the Treasury. They highlight the growth of the “net zero economy,” which they say is currently the UK’s fastest-growing sector and supports more than a million jobs. Some allies argue that Miliband’s credibility and understanding of fiscal policy would provide the stability needed to calm market anxieties and deliver tangible economic change ahead of the next general election in 2029.

However, concerns persist among other Labour figures and business advocates. Critics warn that Miliband’s appointment could alarm financial markets and business leaders, recalling tensions during his earlier leadership when he characterized companies in adversarial terms. Observers note that Miliband’s firm agenda on climate policy might create friction with Burnham’s emphasis on “business-friendly socialism” and managing a balanced transition that prioritizes both environmental goals and economic growth.

Amid the debate, alternative candidates for chancellor have been discussed, including Wes Streeting, who recently outlined a vision for “progressive capitalism” focusing on fiscal responsibility and social investment. Yet some close to Burnham caution that Streeting’s relative lack of Treasury experience could be a liability for such a crucial role. Others mentioned include Shabana Mahmood, Louise Haigh, Pat McFadden, and Lucy Rigby, though Mahmood has expressed a preference to remain as home secretary.

The final decision on the chancellorship will be closely watched as a key indicator of the direction a potential Burnham government might take, balancing Labour’s commitments to climate targets, job creation, and economic management.