You know there are times, perhaps once in every thirty years, when there is a change in politics. It then does not matter what you say or what you do. There is a shift in what the public wants and what it approves of. I suspect there is now such a sea change — and it is for Mrs. Thatcher.
–PM James Callaghan, confiding his fears to advisor Bernard Donoughue on the eve of the 1979 UK election