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
First Vice Prime Minister of Ukraine First Vice Prime Minister of Ukraine First Vice Prime Minister of Ukraine is a government post of Cabinet of Ukraine. In the absence of the Prime Minister of Ukraine, the First Vice Prime Minister performs his or her duty as the acting Prime Minister of Ukraine. In 1991 the post was grandfathered from the already existing First Deputy Chairman that was part of the Council of Ministers of the Ukrainian SSR. In an absence of the First Vice Prime Minister, his or her functions are performed by other Vice Prime Ministers who are members of the Cabinet of Ministers. Similarly