Aberdeenshire, Scotland…The Queen received Liz Truss at Balmoral Castle today. Her Majesty asked her to form a new Administration. Ms. Truss accepted Her Majesty’s offer and was appointed Prime Minister and First Lord of the Treasury.

Ms. Truss is the 15th Prime Minister to serve during Her Majesty’s reign. The first was Winston Churchill in 1952.
Find out more about The Queen and her Prime Ministers: https://www.royal.uk/queen-and-government

Source = UK Royal Family