who elects the leader of the house of representatives
United States House of Representatives The presiding officer is the Speaker of the House, who is elected by the members thereof and is therefore traditionally the leader of the controlling party. He or she and other floor leaders are chosen by the Democratic Caucus or the Republican Conference, depending on whichever party has more voting members. The House meets in the south wing of the United States Capitol.
National Assembly of Pakistan The Leader of the House is the highest ranking representative of the majority party in National Assembly usually the Prime Minister.