There’s an interesting historical pattern in British politics, and you can see it in various shapes and forms since the days of William the Conqueror. About once every century, there is a realignment that completely changes the nature of politics in the country. The last great realignment was the 1922 election, with the Liberal Party falling to third-party status, the Conservatives establishing themselves as the largest party in Parliament, and Labour emerging as the undisputed opposition party.