 She is a member of Labour Friends of Israel.In July 2019, she was sacked as Shadow Brexit Minister for making what Labour called "deeply offensive" remarks at a Labour First group meeting, asserting that the party's leadership was not open to external views and comparing them to being "in a bunker" like the "last days of Hitler".Dianne Hayter lives in Kentish Town, London with her husband, Professor (Anthony) David Caplin, whom she married in 1994.