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
Julia Gillard as "Minister for Population" to that of "Minister for Sustainable Population". The Government released a "sustainable population strategy" in May 2011 which did not specify a target population. In October 2011 trade minister Craig Emerson released a paper with Gillard's approval which advocated for continued rapid rates of population growth. After winning leadership of the Labor Party, Gillard identified addressing the issue of unauthorised arrivals of asylum seekers as a priority of her government. She announced that negotiations were underway for a return to "offshore processing" of asylum seeker claims. Gillard ruled out a return to processing at Nauru and