Andy Burnham's political career has had two distinct halves.

The first was built inside Westminster. He served in Gordon Brown's cabinet, ran twice for the Labour leadership and spent years moving between senior frontbench posts. The second began when he left Parliament in 2017 to become mayor of Greater Manchester.

That move changed him from a familiar Labour politician into a politician with a record of his own.

His strongest achievement was transport. Burnham pushed ahead with bus franchising despite opposition from private operators and a High Court challenge. Greater Manchester became the first English city region outside London to bring buses back under local control since deregulation in the 1980s. The Bee Network was completed on schedule and within its stated budget. Passenger satisfaction later rose.

He can take real credit for that.

The system was not simply announced or piloted. It was fought through the courts, introduced in stages and completed across the city region. Burnham used powers available to him and accepted the political risk when operators challenged the plan.

His record on homelessness is harder.

Burnham promised to end rough sleeping in Greater Manchester by 2020. He missed the deadline and acknowledged before it arrived that he would not meet it. Rough sleeping fell from 268 people in 2017 to 89 in 2021, helped by the local A Bed Every Night scheme and the national Everyone In programme during the pandemic. It then rose for four consecutive years, reaching 197 in the 2025 count.

The fall was substantial. So was the reversal.

National housing costs, benefit policy, asylum accommodation evictions and pressure on health and social care all affected the result. Burnham did not control those forces. He was still the mayor who had made the promise.

Housing followed a similar pattern. Burnham argued for more affordable and council housing throughout his mayoralty, but the largest commitment came late. In 2024 he pledged 10,000 new council homes by 2028, and asked the government for powers to suspend Right to Buy on new council homes. Those promises were made after the housing shortage had already deepened during much of his time in office.

His national profile was transformed by the pandemic. In October 2020 he resisted the government's attempt to place Greater Manchester under tighter restrictions without the financial support he believed residents and businesses needed. The dispute allowed him to present a long-standing argument in public: decisions made in London were being imposed on places that carried the cost.

It was effective politics because it matched his record. Burnham had spent years arguing that England was too centralised. Greater Manchester gave him a stage on which to prove that local power could work differently.

But his model was never as anti-Westminster as it sometimes sounded. The Bee Network depended on legislation passed by Parliament, central funding and cooperation across ten local authorities. His housing and homelessness programmes also relied heavily on national spending and national rules.

Burnham's achievement was not escaping the state. It was using the machinery available to force different decisions.

That distinction now matters. He became prime minister in July 2026 after returning to Parliament through the Makerfield by-election. His early government has borrowed heavily from his mayoral record, including capped bus fares, a renewed drive on rough sleeping and stronger regional involvement in public services.

Open Govt note: the account of Burnham's return to Parliament and move to Downing Street is drawn from Open Govt's own record of the July 2026 change of government, not external reporting.

Greater Manchester showed that Burnham could deliver a difficult structural reform when the powers, funding and political attention lined up. It also showed that his larger promises could outlast the evidence beneath them.

The buses were delivered.

Rough sleeping was not ended. The housing record remains unfinished.

That is the useful measure of Burnham: capable of forcing through a clear reform, less convincing when the promise depends on several broken systems moving at once.