Prime Minister of New Zealand ministerial power; in 1912 Thomas Mackenzie was the last prime minister to lose power through an unsuccessful confidence motion in the House of Representatives. One change brought about by the First World War was direct participation in governing the British Empire. Previously, New Zealand prime ministers had attended occasional colonial and imperial conferences, but they otherwise communicated with London through the governor (a position then appointed by the British government). In 1917, however, British Prime Minister David Lloyd George offered the New Zealand prime minister a seat in the Imperial War Cabinet, the British Empire's wartime coordinating body. In 1919,
Prime Minister of New Zealand five smaller parties. Until the premiership of Helen Clark, it was customary for senior members of the legislature, executive and judiciary—including the prime minister—to be appointed to the British Privy Council, granting them the style "Right Honourable". This practice was discontinued at the same time as the abolition of knighthoods and damehoods in 2000 from the New Zealand honours system. National's John Key became Prime Minister in 2008 and restored titular honours, but did not resume appointments to the Privy Council, meaning Key was styled "The Honourable". However, on 3 August 2010 the Queen granted the prime minister, along with