His Majesty's Most Loyal Opposition

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His Majesty's Most Loyal Opposition, commonly known as the Official Opposition in the United Kingdom, is the main political opposition to His Majesty's Government. This is usually the political party with the second-largest number of seats in the House of Commons, as the largest party will usually form the government. Since May 2010, the Official Opposition has been the Labour Party, led by Keir Starmer since 2020.