Historical rankings of Prime Ministers of Australia teaching or researching in the fields of Australian politics or history" to place Australia's prime ministers in five categories; 40 responded. Five points were awarded to prime ministers judged "outstanding", four for those considered "good", three for "average", two for "below average", and one for "failure". The three caretaker prime ministers were excluded from consideration, as was the serving prime minister, Julia Gillard. John Curtin received the highest average rating, 4.78, and he was the only prime minister who no respondents gave a rating lower than "good". It is possible to compare the highest approval ratings achieved by Prime Ministers
Julia Gillard Rudd make the same commitment. At the leadership ballot, Gillard won comfortably by a vote of 71 to 31. Despite Gillard's defeating Kevin Rudd comfortably in the 2012 leadership spill, tensions remained in the Labor Party regarding Gillard's leadership. After Labor's polling position worsened in the wake of Gillard announcing the date of the 2013 election, these tensions came to a head when former Labor Leader and Regional Minister Simon Crean called for a leadership spill and backed Rudd on 21 March 2013. In response, Gillard sacked Crean from his position, and called a leadership spill for 4.30pm that same