The key thing to understand about Andy Burnham's speech is these were the words and the delivery of both a new prime minister and a grieving son, the BBC's political editor writes.

I had expected him to try to forge a political consensus on this thorny issue at this stage, but he has gone further than that.

The triple lock guarantees that the state pension is not overtaken by inflation or wage increases.

The former mayor of Greater Manchester has had designs on the top job since 2010 when he first ran to be Labour leader.