Politics explained: How Momentum grew up, from Corbyn fan club to policy powerhouse

Momentum is full of talented young people gaining their first experience of working in politics – many of them will be the MPs and ministers of the future

The group has come up with a set of eye-catching policies (Bloomberg/Getty)

A four-day working week, a zero-carbon economy by 2030 and the abolition of immigration detention centres: that’s the radical programme being advocated by Momentum, the Labour pressure group.

The organisation was set up by Jon Lansman, who ran Jeremy Corbyn’s leadership campaign in 2015, as a way of sustaining and harnessing the energy (and email list) generated by that election.

Lansman, who cut his teeth 34 years earlier in Tony Benn’s deputy leadership campaign in 1981, had learned from a lifetime of internal opposition to New Labour. And many of those lessons were learned from New Labour.