Channel 4 examines UK prime ministerial churn through historical parallels
The FourSight segment from Channel 4 News analyzes frequent changes in UK prime ministers, noting six or more leaders in certain 10-year historical periods including the 1820s, 1850s, 1880s and especially the 1920s. It compares the 1920s (six PMs in seven years amid WWI aftermath) to the present, driven by Brexit and other shocks, party system strain, and media evolution. It draws on interviews with historians Robert Saunders and Lucy Delap plus Institute for Government fellow Catherine Haddon; sources include archival footage, voting data, debt figures and polling trends showing erosion of the two main parties' dominance.
Source: Channel 4 News