Politics of the United Kingdom

Lore & Background

The United Kingdom is a constitutional monarchy and a unitary parliamentary democracy, operating under an uncodified constitution formed from conventions, statutes, and other elements. A hereditary monarch serves as head of state, while the prime minister, who must be an existing member of parliament able to command the confidence of the House of Commons, acts as head of government. The monarch formally appoints the prime minister, who then appoints other ministers from parliament. The supreme legislative body is the Crown in Parliament, comprising the House of Commons and the House of Lords. Bills passed by both houses normally become law upon Royal Assent, though the Parliament Acts provide a mechanism for the Commons to bypass the Lords in certain circumstances. The system is multi-party, with the Conservative and Labour parties dominating since the 1920s; earlier, the Liberal Party was the other major party. The first-past-the-post electoral system tends to maintain this dominance, though coalition governments have occurred, such as the Conservative–Liberal Democrat coalition from 2010 to 2015. Devolution has granted legislative powers to parliaments in Scotland and Wales and an assembly in Northern Ireland, with the British government retaining control over non-devolved matters. This devolution has been linked to increased support for independence, as seen in the Scottish National Party forming a minority government in 2007 and later winning an overall majority in the 2011 Scottish Parliament elections. The constitution, known as the Westminster system, has been adopted by other former parts of the British Empire. The UK also oversees Crown Dependencies and British Overseas Territories, where local governments manage internal affairs while remaining subject to the UK Parliament.

Reader's Guide

The United Kingdom operates as a constitutional monarchy and a unitary parliamentary democracy, with a hereditary monarch as head of state and a prime minister as head of the elected government. The prime minister is formally appointed by the monarch from among existing members of parliament who can command the confidence of the House of Commons, typically the leader of the majority party. The Parliament consists of two houses: the House of Commons and the House of Lords. The Crown in Parliament is the supreme legislative body, with bills normally becoming law upon receiving Royal Assent, though the Parliament Acts provide a mechanism for the House of Commons to bypass the Lords in certain circumstances, a process that could provoke a constitutional crisis. The constitution is uncodified, composed of statutes, conventions, and other elements, forming the Westminster system adopted by other former British Empire territories. Since the 1920s, the Conservative and Labour parties have been dominant, with the Liberal Party previously holding that position. Coalition and minority governments have occurred occasionally, with the first coalition since 1945 holding office from 2010 to 2015. Devolution has granted legislative powers to Scotland, Wales, and Northern Ireland, each with its own parliament or assembly; Northern Ireland’s devolution is conditional on participation in all-Ireland institutions. This devolution may have increased support for independence, as seen in the Scottish National Party forming a minority government in 2007 and later winning a majority, though a 2014 independence referendum resulted in a vote against secession. The UK also governs Crown Dependencies and British Overseas Territories, with varying degrees of internal self-governance.

Did You Know?

• The UK's constitution is uncodified, consisting of conventions, statutes, and other elements.
• The monarch can theoretically refuse Royal Assent to bills, though this power is subject to convention.
• The first-past-the-post electoral system tends to maintain dominance of the Conservative and Labour parties.