Back in the day when she was best known as Tricia Armstrong in Coronation Street, Tracy Brabin did not shy away from national politics, appearing in Labour campaigns and using her stardom to generate interest in the political project. But it was the tragedy and brutal murder of her friend Jo Cox in Tracy's hometown which catapulted her into the Commons. Now the first Mayor of West Yorkshire, she speaks to James about her life and the shocking events in the aftermath of Jo's death.