<p>They say the first rule of politics is never to resign. It seems, however, that Britain's leaders have all too often failed ? or refused ? to heed this sage advice.<br>Fighters and Quitters charts the scandals, controversies and cock-ups that have obliterated dreams of high office, from the ex-minister who faked his death in the 1970s, to Geoffrey Howe's plot to topple Margaret Thatcher, to the many casualties of the Brexit saga. Then there ar...