Prime minister leader, the incoming leader will usually be referred as "prime minister-in-waiting". An example or this situation was in 2016 in the United Kingdom when Theresa May was elected leader of the Conservative Party while David Cameron was still prime minister. Ukraine's constitution (1996) lists the powers, functions and duties of the Prime Minister of Ukraine. Most prime ministers in parliamentary systems are not appointed for a specific term in office and in effect may remain in power through a number of elections and parliaments. For example, Margaret Thatcher was only ever appointed prime minister on "one" occasion, in 1979. She
Prime Minister of Peru is César Villanueva, who took office on 2 April 2018. Recently, the role of the prime minister has been debated, and whether it should be strengthened. This idea has been supported by former presidents Alan García, Alejandro Toledo and Ollanta Humala. Such reforms would enable the prime minister to become the effective head of government, similarly to what happens in countries like France and Russia. Prime Minister of Peru The President of the Council of Ministers of Peru, informally called "Premier" (form of address) or "Prime Minister", heads the Council of Ministers, and is appointed by the President (pending ratification