Labour will receive the backing of the country's biggest trade union in next year's election - despite its high-profile criticism of reforms pushed through by Ed Miliband.
Unite's General Secretary Len McCluskey will today tell the union's national conference in Liverpool that Mr Miliband's party will offer the chance to improve pay, jobs and conditions for workers.
Mr McCluskey has previously hit out at Labour's reforms of its relationship with its trade union backers.
And senior Unite officials are reported to be demanding a place at the top table of government in return for the union's financial mite.
But today he wrote in the Morning Star newspaper: "For our UK members, there can be no doubt that if a Tory government is returned to power in 2015, the mindless austerity that the coalition has inflicted upon our people will be but child's play; they have worse in store."
Mr McCluskey believes that Labour should have enough money to mount a strong campaign against the Conservatives.
Unite will reveal today whether its 70,000 members in local government in Wales, England and Northern Ireland have voted to take industrial action over pay.
Unison and the GMB have already held strike ballots, with their members voting in favour, in protest at a pay offer worth 1% for most workers.
A one day stoppage is being held on July 10, threatening the coalition with its biggest challenge to its policy of public sector pay restraint.
