By Voice of the Mirror Keir Starmer has shown he is serious about winning power and serious about managing the economy. The Labour leader would far rather have fought the election promising billions for home insulation, green jobs and clean power. But the economic outlook has completely changed since he announced his £28billion green plan. Labour will have less to spend because the Tories crashed the economy with Liz Truss’s disastrous mini-Budget. As the party of economic responsibility, Labour is having to pay the price and tailor its plans to reflect the dismal legacy it will inherit. This …