Andy Burnham will tell the Commons on Tuesday that bringing essential services back into public control is the only route to sustained economic growth — his most explicit framing yet of renationalisation as economic policy rather than ideological preference. Six weeks into his premiership, Burnham is placing a bet that the cost of privatised utilities and transport to household budgets is the binding constraint on UK growth, and that removing the extraction layer of private shareholders will unlock investment, jobs, and lower consumer costs. The immediate test is Thames Water. Burnham is considering legislation to streamline insolvency proceedings for struggling utilities, enabling the government to take control afterwards. This is not abstract: Thames Water's debt pile and chronic underinvestment have made it the poster case for privatisation failure. The legal mechanism matters enormously — getting the insolvency pathway wrong could spook bondholders across every UK utility and raise borrowing costs for the government itself. Burnham arrives at the dispatch box with a stack of summer announcements that now need legislative oxygen: a VAT cut on energy bills, £2 bus fares, scrapping digital ID, expanded devolution, and a national care service. The Liverpool City Region begins taking control of bus services next weekend, and a No 10 North–West Midlands Combined Authority partnership is already rolling out public bus routes. These are tangible, but they are also the easy wins. The 10-year utility takeover is where the real fiscal and political exposure lives. The opposition has already identified the weak flank. MPs will demand answers on a £4.7bn gap in the defence investment plan inherited from Keir Starmer, and on how the broader public ownership programme will be funded. Burnham's team has offered optimism — "bring back hope" — but not a balance sheet. Kemi Badenoch reshuffled her shadow cabinet on Monday, sacking Mel Stride and Priti Patel, installing Andrew Griffith as shadow chancellor and Tom Tugendhat as shadow foreign secretary, explicitly to sharpen the economic attack. Burnham also faces serious pressure from his own side. Nearly 100 Labour MPs want a commission on electoral reform within 100 days — a cause Burnham has historically supported. The decision to drop a cap on party donations, under trade union pressure, despite Burnham's previous backing of a £500,000 cap, has angered backbenchers. Ed Davey's Liberal Democrats are backing an amendment from Labour's Alex Sobel and framing this as the test of whether Burnham differs from Starmer. Reform's party conference in Birmingham this week, with Farage speaking Friday, adds electoral urgency. The justice secretary, Alex Norris, will separately present plans to cut early-release eligibility, including for the killers of PC Andrew Harper. Most manslaughter convicts will serve longer sentences, but the resulting pressure on prison capacity could accelerate a crisis the system is already struggling to contain. Polling gives Burnham breathing room but not a mandate for complacency. Labour leads Reform by four points in the latest More in Common survey, with the Conservatives a further point behind. Burnham's net approval rose three points over the last fortnight in the Opinium poll. The structural question is whether the public ownership agenda can deliver material cost reductions fast enough to sustain that lead before the fiscal constraints — and the defence gap — become the dominant story.