Executive power rests nominally with the monarch but actually is exercised by a committee of ministers (cabinet) selected from among the members of the House of Commons and, less frequently, the House of Lords. The prime minister is normally the leader of the largest party in the House of Commons, and can remain in office for so long as he or she has the support of a majority in that body. | Executive power rests nominally with the monarch but actually is exercised by a committee of ministers (cabinet) selected from among the members of the House of Commons and, less frequently, the House of Lords. The prime minister is normally the leader of the largest party in the House of Commons, and can remain in office for so long as he or she has the support of a majority in that body. |