There have been twelve UK prime ministers in my lifetime – Heath, Wilson, Callaghan, Thatcher, Major, Blair, Brown, Cameron, May, Johnson, Truss, Sunak. Only five became prime minister because of a general election (Heath, Wilson, Thatcher, Blair, Cameron). Only four lost power because of an election (Heath, Callaghan, Major, Brown). So only one of those both became prime minister because of an election, and lost it because of one (Heath). (Wilson’s first term was before I was born.) All the others either gained power through an internal party process or lost it that way, sometimes both.

Because Heath was elected before I was born, I’ve never seen a PM both elected to that office and voted out of it. There is no profound point here, and certainly not a party political one, other than noting how rare it is that general elections make and end a Prime Minister’s term in office.

(Even Heath clung on to power for a few days after the February 1974 election, resigning when he failed to get an agreement with the Liberal Party to remain PM. Going further back, Wilson’s first term and Attlee are prime ministers both elected and defeated at a general election.)