Original sentence: The SWM changed its name to the Socialist Workers Party at its conference in 1995, after delegates working at Dublin Bus argued that it should now take itself seriously on the left, as it then had a growing and active membership
Edited sentence: The SWM changed its name to the Socialist Workers Party at its conference in 1995, after delegates working at Dublin Bus argued that it should now take itself seriously on the left, as it then had a larger active membership than Stalinist groups such as the Workers Party and the Communist Party of Ireland which had previously overshadowed it