Shabana Mahmood, the current home secretary, is expected to become chancellor of the exchequer under Prime Minister Andy Burnham, according to senior Labour figures briefing the Guardian. The move comes after an internal debate over whether Ed Miliband should take the Treasury role.

Labour insiders say Burnham's team views Mahmood as the safer choice. They worry that appointing Miliband to such a powerful position would expose the government to sustained criticism. Miliband, a former Labour leader and current prominent figure in the party, carries political baggage that could invite attacks on economic policy decisions.

Mahmood, a veteran Labour MP from Birmingham, brings different political capital to the role. Her background as home secretary positions her as a law-and-order focused operator rather than a divisive ideological figure. This perception makes her less vulnerable as a lightning rod for opposition attacks on treasury decisions.

The briefing war itself reveals tensions within Burnham's transition team over cabinet construction. That senior figures felt compelled to brief journalists about this decision suggests disagreement over the chancellor selection. Allies of Miliband likely pushed back against being sidelined to a less prominent portfolio, while the Burnham camp worried about the political risk.

The chancellor role carries enormous weight in any government. Treasury decisions on spending, taxes, and economic policy invite constant scrutiny. Burnham's team apparently concluded that Mahmood offers a less contentious figurehead for those decisions than Miliband would provide.

This move reshapes the upper tier of Labour's government. Mahmood leaves the Home Office after managing contentious issues around crime and policing. Her replacement at the Home Office remains unclear from available information, though the Treasury appointment confirms the direction of at least one major cabinet change.