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
Gillard Government Parliamentary member of the ALP Right Faction, nominated the government's handling of the way in which Rudd had "introduced the debate" about the Resource Super Profits Tax as one of the main considerations which had led to a shift in support from Kevin Rudd to Julia Gillard as leader of the party. After becoming Prime Minister, Gillard cancelled the Rudd Government's controversial $40 million advertising campaign supporting its mining super profits tax and called on miners to withdraw their own media campaign against the tax. Gillard pledged to re-negotiate the tax proposal and a revised Minerals Resource Rent Tax was