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 Sweden the Prime Minister-designate is approved, the Prime Minister chooses which and how many ministers are to be included in the government. With the exception of the Prime Minister, cabinet ministers () do not need the approval of the Riksdag, but they can be forced to resign by a vote of no confidence. If the Prime Minister is forced by a vote of no confidence to resign, the entire cabinet falls, and the process of electing a new Prime minister starts. The Prime Minister can dissolve the Riksdag, even after receiving a vote of no confidence, except during the first three