First Lord of the Treasury that office; in this case, the Second Lord of the Treasury usually served as Chancellor. As of 1841, the Chancellor of the Exchequer has always been Second Lord of the Treasury when he was not also Prime Minister. By convention, the other Lords Commissioners of the Treasury are also Government Whips in the House of Commons. 10 Downing Street is the official residence of the First Lord of the Treasury, and not of the Prime Minister. Chequers, a country house in Buckinghamshire, is the official country residence of the Prime Minister, used as a weekend and holiday home, although the
Prime minister-designate the largest party, in which case (s)he becomes prime minister-designate same as if his/her party had a majority. On the other hand, if a prime minister in such a situation chooses not to resign, the leader of the largest opposition party will not become the prime minister-designate even if his/her party has the most seats. In the latter case, the prime minister must win a vote of confidence to remain in office. If (s)he is immediately defeated in the house, the head of state in most Westminster systems is often expected to refuse a request to dissolve the house. The