Penny Mordaunt is the first candidate to officially announce her candidacy to become the Prime Minister of the United Kingdom.
She came third in the last race over the summer, securing strong support from her fellow MPs, but just missed out on making it to the final two.
After backing outgoing Prime Minister Liz Truss, she was appointed Leader of the House of Commons and Lord President of the Privy Council – meaning she chaired the Accession Council for the new king.
She has so far received support from MPs John Lamont, Maria Miller, Bob Seely and Damian Collins.