Rab Butler was one of the most significant Prime Ministers of the post-war United Kingdom, winning three general elections and remaining in office for twelve years; to this day, he's remembered as one of the most important figures in the history of the Conservative Party, and the 'Butlerites' are still an important faction within the party. My questioning is twofold: how could you avoid him becoming Prime Minister (with bonus points if you can stop him from being Conservative leader at any point), and what would a Butler-less Britain look like?