By her own admission, Liz Truss is not always known as being diplomatic. As she takes on the role of Foreign Secretary, Profile investigates the influences and events that have taken her to one of the great offices of state, and finds that the journey has been far from usual.

Mark Coles hears from Liz Truss’s brother, her student friend and keen watchers of her political career, and asks how this former Liberal Democrat, karaoke-lover and child of CND campaigners came to sit almost at the top of the Conservative party.

Producer: Nathan Gower