posted on Mar, 25 2009 @ 04:57 PM
In the Westminster parliamentary system (used by the UK & many Commonwealth countries) the Prime Minister is the MP in the Lower House who leads the
majority party or a coalition of parties. He's invited to form a government and become Prime Minister by the Queen, or the Governor General (acting
on her behalf).
He's voted into the Lower House by the electorate in his own constituency.
So he is elected, but only by a relatively small number of people, in the tens of thousands.
He remains Prime Minister until he resigns (Tony Blair), his party loses a general election (John Major), he loses the support of his Parliamentary
colleagues (Margaret Thatcher) or his government loses the confidence of the Lower House & the subsequent general election (James Callaghan).