Kevin Rudd: 'I resume with humility and honour'
26 June 2013 Last updated at 15:31 BST
Kevin Rudd has ousted Prime Minister Julia Gillard as leader of Australia's Labor Party.
He won 57 votes in a leadership ballot of Labor MPs and senators called by Ms Gillard, who received 45 votes.
The change comes ahead of a general election due in September, which polls suggest Labor is set to lose.
Mr Rudd said: "In 2007 the Australian people elected me to be their prime minister and that is a task I resume today with humility, with honour and with an important sense of energy and purpose."