For most modern democracies, leaders are the architects of change, shaping the course of history through their ideas, rhetoric, and influence. However, despite never holding the highest offices, some can leave an indelible mark on their nation's politics. Join Vernon Bogdanor, professor of Government at King's College London, as he argues that the most radical change doesn't need to come from the highest offices. From Enoch Powell and Nigel Farage to Tony Benn, political impact is not solely about power or position but about vision, conviction, and the ability to shape public opinion.

Part 1: Beyond office: What makes a politician truly influential?

Part 2: Making the weather: How political outsiders can reshape a nation.