The rightward slide of the Labour Party under the leadership of Keir Starmer is one of the most remarkable developments of the past few years. His tight grip on power and his excision of several key left-wing members have raised questions about the future of the Left both inside and outside the organization. In this context, the sudden announcement of a new political party by Jeremy Corbyn and Zarah Sultana provides an opportunity to take stock of the British left, not just today but in the recent past. Catalyst inter-viewed Tom Devenny, an official in the British trade union movement and a former member of Momentum.