Haven't read Beckett. Anyway......
....amongst lefty and righty friends - Labour lost the last election simply because Ed Milliband didn't look or come across like any sort of leader. Simply unelectable.
Perceived to be a Union puppet who also had an unfortunate face. (being a Union placement also did for Callaghan but at least he he looked acceptable).
That's about it, really.
His brother, I'm sure, would have been a far more electable person.
But, hey. What do I know.
Every one of these politicians would tear mere mortals to shreds in a political argument.