Which political party serves as the Official Opposition in the House of Commons?

The political party that serves as the Official Opposition in the House of Commons is the Labour Party. The Official Opposition is typically the party that holds the second-largest number of seats in the House of Commons after the governing party. This party plays a crucial role in scrutinizing the government's actions, proposing alternative policies, and representing a dissenting viewpoint. The leader of the Official Opposition is often given a significant platform to challenge government policies and debate key issues.

The Conservative Party, while often the ruling party, is not the Official Opposition when Labour holds a larger number of seats. The Liberal Democrats and the Green Party, although they have representation, have fewer seats than both Labour and the Conservatives and thus do not play the role of Official Opposition. Therefore, Labour, as the second-largest party in the House of Commons, fulfills the role of Official Opposition, ensuring a balance in political discourse and accountability in governance.