In Conservative leadership elections, the Parliamentary party select their top two candidates, and then the entire membership is given a vote to select who will be their next leader, and in this case, Prime Minister.
This is a companion discussion topic for the original entry at https://eyeonsouthport.co.uk/news/article/southport-mp-damen-moore-shows-his-support-for-liz-truss-to-be-next-prime-minister-20220730