Corbyn's strength comes from his wider support in the party, something Momentum is trying to maintain. That's why it is being bitterly attacked by the Labour right.
The government's assault on trades unions will take workers' rights to collective action back to the 19th Century - unless we stop them.
The vast strike in England, Wales and Northern Ireland on July 10 is a response to an attack on the British workforce as a whole, and we should all show our support.
Caroline Lucas has launched the Public Service Users Bill in parliament, a critical first step to ending Britain's nightmare of failed privatisation. Here's what it would empower the public to do.