The role of prime minister from Gladstone to Johnson
In this week's edition of Black's History Week, Professor Jeremy Black talks to The Critic's political editor, Graham Stewart, about how the role of prime minister has evolved from the tenure of William Ewart Gladstone to Boris Johnson. _ Image: William Ewart Gladstone (1809-1898), Engraving c1895. (Photo by Universal History Archive/Getty Images) Music: Radetzky March by Human Symphony Orchestra (premiumbeat.com)