Sky News looks at the runners and riders - and who is favourite for the job - after former chancellor George Osborne predicted Liz Truss will most likely be gone 'before Christmas'.
in the Tory leadership race, is favourite with the bookmakers to replace her if she is ousted.
Following the fall-out from the mini-budget, supporters of Mr Sunak believe he has been vindicated. One MP who supported him in the leadership race told the Telegraph:"Everything he said has come to pass." However she has since taken on the prime minister after suggesting that benefits should rise in line with inflation.
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