Prime Minister of New Zealand signed a number of international treaties. In 1967, Keith Holyoake became the first New Zealand prime minister to select candidates for the position of governor-general without any involvement of the British government. Holyoake advised the monarch, Queen Elizabeth II, to appoint Sir Arthur Porritt, the first New Zealand–born governor-general. After the mixed-member proportional (MMP) system was introduced in 1996, prime ministers have had to manage minority governments. The skill of MMP management was exemplified by Helen Clark's nine years as prime minister (1999–2008), when her Labour Party remained in power thanks to a range of confidence and supply agreements with
First Vice Prime Minister of Ukraine to Prime Minister, all office duties of the First Vice Prime Minister are supported by the Secretariat of Cabinet of Ministers. Along with other members of Cabinet of Ministers, the newly appointed First Vice Prime Minister takes one and the same oath of office at a plenary session of the Verkhovna Rada (Ukrainian parliament). According to the Article 10 (Law of Ukraine about the Cabinet of Ministers), a member of Cabinet of Ministers (except for the Prime Minister of Ukraine) who refuses to take the oath is considered as such who refused to accept the post. Every newly appointed member