How the resignation of the GMB’s general secretary could impact Keir Starmer’s leadership

Much of the Labour leader’s project lives or dies on his ability to get his business through the NEC – a mission to which the GMB trade union is crucial.

By Stephen Bush

LONDON, ENGLAND - APRIL 22: Labour Party leader Sir Keir Starmer leaves his home ahead of his first PMQ session, on April 22, 2020 in London, England. As Prime Minister Boris Johnson continues his recovery from the effects of COVID-19, Starmer will face the Foreign Secretary Dominic Raab in the weekly debate session at the House of Commons. (Photo by Leon Neal/Getty Images)

Tim Roache has stood down as general secretary of the GMB, the United Kingdom’s third largest trade union and Labour’s third largest affiliate, in news that will reshape both trade union and Labour politics.

In small-l labour politics, the GMB represents workers in industries as varied as nuclear power, aviation, defence procurement and the gig economy. If you have taken an Uber, or switched on a light, the leadership of the GMB has potential implications for you.