Harriet Harman is trying to stitch up a seat for a millionaire comedian’s daughter As Guido revealed in his Sun on Sunday column, Harman has been sniffing around for a seat for her old aide Mabel McKeown, the daughter of Tracy Ullman, who amassed a £75 million fortune as her show brought the world The Simpsons. Less-than-local candidate Mabel who was born in LA, has not had much electoral success so far. She lost out for a local council and when she stood for the London Assembly. She will be hoping she is more successful than the politician her mother most famously backed in a pop video: Neil Kinnock.