There was a sense of inevitability about Julia Gillard’s fall; the surprise is that it was so long delayed. The Australian Labor Party’s standing is low enough that sooner or later enough MPs would become convinced that their continued presence in the federal parliament demanded a new leader. Or rather an old, new leader, Kevin Rudd. There is nothing unique in what has happened. Gillard’s overthrow is simply another example of the extreme instability of leadership that characterises Australian political parties. The fearsome institution of the ‘spill’, by which parliamentary coups can be staged, and the relentless short-termism of Australian politics, mean that parliamentary leaders are under constant pressure. Tony Abbott, the leader of the opposition, staged a successful coup against Malcolm Turnbull, who had staged a coup against Brendan Nelson. Earlier this year Ted Baillieu went to work as the premier of Victoria and ended the day as no one, having been overthrown by a man whom he had originally himself overthrown. Such instability is made worse by the destructive effects of opinion polling. Australian politicians insist that polls are the furthest things from their minds; in fact, they hardly think of anything else. Rudd himself was unseated as prime minister after one bad opinion poll.