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 Subsequent to the federal election held on 7 September 2013, Gillard was succeeded as the Member for Lalor by her preferred replacement, Joanne Ryan, a former school principal. Although nominally a member of the Victorian Left faction of the Labor Party, her election to Prime Minister occurred because of support from the Right factions of the party, with the hard Left planning to support Rudd in the Caucus vote had there actually been one. Analyses of Jacqueline Kent's 2009 biography of Gillard suggest that her membership in the Left faction is "more organisational than ideological". In July 2010, historian Ross