Julia Gillard continued to differ as to the extent of Gillard's foreknowledge and planning of the replacement of Rudd. Rudd initially said that he would challenge Gillard, but it soon became apparent that he did not have enough support within the party to survive in his position. Hours before the vote on 24 June, he resigned as Prime Minister and Leader of the Labor Party, leaving Gillard to assume the leadership unopposed. Treasurer Wayne Swan was at the same time elected unopposed to succeed Gillard as Deputy Leader. Shortly afterward, Gillard was sworn in as the 27th Prime Minister of Australia by
Historical rankings of Prime Ministers of Australia Paul Keating has had the lowest high-mark satisfaction rating at 43%. Voters are asked the question: 'Are you satisfied or dissatisfied with the way -name- is doing his/her job as Prime Minister?' Since Newspoll began in 1985, the lowest satisfaction rating of any Prime Minister is by far Paul Keating's at 17% in August 1993, with a 6% difference between Keating and the nearest low rating of Julia Gillard at 23% in September 2011. John Scales, of JWS research, in May 2011 polled 2141 people in the 10 most marginal Labor seats and the 10 most marginal Coalition seats. Asked