The biggest choice facing Andy Burnham right now is who he will make his chancellor. It is a decision that could define his entire government, unlocking billions for public spending or triggering a market crisis before he even enters Number 10. For UK readers watching the transition from Sir Keir Starmer to Burnham, understanding what a chancellor does – and why the choice matters so much – is essential to following the political drama.
A chancellor of the exchequer is the UK government's chief financial minister, responsible for taxation, public spending, and managing the economy. The role is so powerful that the relationship between a prime minister and their chancellor has often been described as “intimate” – either creatively productive or toxically destructive. Think of Tony Blair and Gordon Brown’s fraught partnership versus David Cameron’s smooth collaboration with George Osborne. The person chosen sends a strong signal to financial markets, businesses, and the public about the government’s economic direction.
“Why the choice of chancellor matters for UK politics and the economy.”
This week, Burnham – who is widely expected to become prime minister after Sir Keir Starmer steps down – faces the decision. According to sources close to him, no promises have been made yet, and he is expected to decide over the weekend of 27-28 June 2026. The current chancellor, Rachel Reeves, appears to be fighting a forlorn rearguard action; one Burnham backer said bluntly: “Not Rachel.” The two most obvious contenders to replace her are from different wings of the Labour Party: Wes Streeting, representing the centre-right, and Ed Miliband, from the centre-left.
Streeting is seen as a strong communicator and has been working with pro-growth figures like Will Hutton and former Bank of England economist Andy Haldane. If his appointment calmed bond markets and lowered gilt yields, it could unlock billions of pounds for other priorities without raising taxes. However, Streeting has made no secret of his ambition to be prime minister, which might make Burnham wary of having him as a neighbour. By contrast, Ed Miliband – the Energy Secretary and brother of former foreign secretary David Miliband – is backed by veteran Labour figure Harriet Harman, who has publicly said he should be chancellor. But he faces fierce criticism from union leaders over his net zero policies and from the right-wing press, which could spook bond markets if appointed. One senior MP noted: “It’s actually unfair, but the question is, can Ed get beyond the vicious caricature of him?”
This choice matters for ordinary UK readers because whoever becomes chancellor will shape everything from tax bills and public service funding to interest rates and the cost of borrowing. The bond market’s reaction to the appointment could directly affect mortgage rates and government spending on the NHS, schools, and infrastructure. A chancellor seen as fiscally credible can give the government room to borrow more cheaply; a divisive figure could trigger a market sell-off, as happened after Liz Truss’s mini-budget in 2022.
Q: Why is the chancellor so important in UK politics? The chancellor controls the nation’s finances – setting budgets, deciding taxes, and managing public debt. Because financial markets react instantly to economic policy signals, a chancellor can make or break a government’s credibility. The appointment is also a personal relationship test: a divided No 10 and No 11 can derail a premiership.
Q: What does “bond market hostility” mean, and why does it matter? When investors lose confidence in a government’s economic plan, they demand higher interest rates to buy UK government bonds (gilts). This raises the cost of borrowing for the government and can feed through to higher mortgage rates for households. A chancellor who reassures markets can keep borrowing costs low, freeing up money for public spending.
Q: Could David Miliband return to frontline politics under Burnham? David Miliband, who quit as an MP in 2013 to head the International Rescue Committee, has been speculated about as a possible cabinet member. In theory, he could be given a peerage and join the cabinet from the House of Lords, as David Cameron did under Rishi Sunak. However, when asked if he was interested, Miliband dodged the question. A source who knows him said he would be “a massive asset” for foreign affairs, climate change, and humanitarian work.
What happens next is all about timing. Burnham is expected to make his chancellor decision public within days. Once appointed, the new chancellor will face immediate pressure to outline their economic strategy, particularly on spending, tax, and net zero. The choice could also determine whether David Miliband – who praised Burnham’s “openness and energy” – returns to government. For now, the country watches and waits.