Speaking at the Labour conference in Liverpool, Burnham will tell delegates he is prepared to make difficult arguments and have an 'honest conversation' about tackling the UK's intractable issues, including social care. Government sources indicated the prime minister will signal his readiness to review the triple lock but will not commit to abolishing it.
The triple lock guarantees that the state pension rises each year by the highest of inflation, average earnings growth, or 2.5%. Scrapping it has long been considered politically perilous due to its popularity among older voters.
Sharon Graham, the general secretary of Unite, described any move to end the triple lock as 'electoral suicide', warning it would be attacked by both the Conservatives and Reform UK. The Labour conference is taking place in Liverpool, with Burnham expected to address the need for funding a national care service.