original: traditionally , the leader of the national party serves as deputy prime minister when the coalition is in government .
simplifications: traditionally , the leader of the national party serves as deputy prime minister when the coalition is in government . the leader of the national party is usually deputy prime minister when the coalition is in power . traditionally , the leader of the national party serves as deputy prime minister when the coalition is in government . traditionally , the leader of the national party serves as deputy prime minister when the coalition is in office . traditionally , the leader of the national party serves as deputy prime minister when the government is formed by a temporary allied parties . normally , the leader of the national party is appointed as deputy prime minister when the alliance is in government . traditionally , the leader of the national party serves as deputy prime minister when the coalition is in power . when the coalition is in government , the leader of the national party serves as deputy prime minister .