Churchill in his history of WW II commented on his demise from public view in 1945 as follows:
Thus, then, on the night of the tenth of May (1940), at the outset of this mighty battle, I acquired the chief power of the State, which henceforth I wielded in ever growing measure for five years and three months of world war, at the end of which time, all our enemies having surrendered unconditionally or being about to do so, I was immediately dismissed by the British electorate from all further conduct of their affairs.
The attraction of voters for small and tedious people remains, thankfully I think, unappreciated by me.
Churchill did return to public office after WWII and served as PM from October 1951 to April 1955.