David Miliband’s decision to quit parliament removes him from the exquisitely tricky position he had been in since narrowly losing the leadership contest to his brother in 2010. From the moment of his defeat any intervention he made, regardless of the topic, was interpreted as part of a complex family psychological drama connected in some way with his thwarted ambition. That is partly because there was a cadre of senior Labour figures who doubted Ed’s capability to do the top job properly and privately toasted the elder sibling as a leader-over-the-water.
Once Ed had consolidated his hold on the leadership those dissenters who still questioned the strategic direction of the party focused their mutterings instead on the perceived failings of Ed Balls to advance a persuasive economic argument. David’s old cheerleaders downgraded their ambitions for the former foreign secretary and started toasting him instead as shadow-chancellor-over-the-water.