GP practiceGP surgeries could be “tipped over the edge” by Labour’s new Budget, according to a union representative.Chancellor Rachel Reeves has chosen to hike up Employers’ National Insurance contributions in her efforts to raise £40bn of funds and plug the “black hole” left by the Tories in the public purse.The NHS – which has just received a £22.6bn cash injection in the Budget – is exempt from that tax rise, along with other public sectors.But GP surgeries, care homes and hos