Penny Mordaunt

With Boris Johnson's party gate scandal and Liz Truss's tax cuts debacle, Sunak is the third prime minister in the last seven months

Truss, who came to power on September 6, is the shortest-serving UK prime minister, who succeeded Boris Johnson. She delivered a statement outside 10 Downing Street

Penny Mordaunt was earlier minister for disabled people and first elected as the MP for Portsmouth North in 2010