Scottish Labour MSP Katy Clark has ruled herself out of the running to replace Anas Sarwar as nominations in the leadership contest open. The new Scottish Labour leader will be announced on September 19. Before nominations opened, Marra said: “I’m running in this contest to unite and renew the Scottish Labour Party. “To offer hope again and to spell out what Scottish Labour is for, not simply who and what we are against. PA Media Scottish Labour MSP Joe Fagan PA MediaAll three leadership contenders have also written for the Scotland on Sunday newspaper, setting out their pitches to party members.