Prime Minister of the United Kingdom century as a convention of the constitution, the position of Leader of the Opposition was given statutory recognition in 1937 by the Ministers of the Crown Act. British Prime Ministers have never been elected directly by the public. A Prime Minister need not be a party leader; David Lloyd George was not a party leader during his service as prime Minister during World War I, and neither was Ramsay MacDonald from 1931 to 1935. Prime Ministers have taken office because they were members of either the Commons or Lords, and either inherited a majority in the Commons or won more
Prime Minister of Russia does not have the majority and fails to form a coalition, the President may need to appoint a loyalist to the position of Prime Minister. For example this occurred in 1998 when the state Duma (which had most of the opposition to the President of the party) twice refused to appoint Prime Minister Viktor Chernomyrdin and Boris Yeltsin appointed Prime Minister Yevgeny Primakov, who supported the left opposition. In the mid-90s in Russia there was a term "Technical Prime Minister". This term refers to the Prime Minister, who is not an independent political figure, is only the nominal head of