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
Deputy Prime Minister (Denmark) Deputy Prime Minister (Denmark) Deputy Prime Minister (Danish: "vicestatsminister") is an informal description sometimes used, especially by the press, for the minister who is second in the order of precedence. This is the minister who will usually be appointed as acting prime minister when the prime minister is unavailable. Traditionally the minister of foreign affairs holds the second rank. It is only when the order of precedence deviates from this tradition, that number two is referred to as "vicestatsminister". This happens in the unusual case when the leader of the second largest coalition party is not minister of foreign affairs.